diff --git a/$index.ts b/$index.ts
index d71e95d..80b13c1 100644
--- a/$index.ts
+++ b/$index.ts
@@ -1,41 +1,47 @@
-import { $Node, $State } from "./index";
-import { $Anchor } from "./lib/$Anchor";
-import { $Button } from "./lib/$Button";
-import { $Form } from "./lib/$Form";
-import { $Input } from "./lib/$Input";
-import { $Container } from "./lib/$Container";
-import { $Element } from "./lib/$Element";
-import { $Label } from "./lib/$Label";
-import { Router } from "./lib/Router/Router";
-import { $Image } from "./lib/$Image";
-import { $Canvas } from "./lib/$Canvas";
-import { $Dialog } from "./lib/$Dialog";
-import { $View } from "./lib/$View";
-import { $Select } from "./lib/$Select";
-import { $Option } from "./lib/$Option";
-import { $OptGroup } from "./lib/$OptGroup";
-import { $Textarea } from "./lib/$Textarea";
+import { $Node, $State, $StateOption } from "./index";
+import { $Anchor } from "./lib/node/$Anchor";
+import { $Button } from "./lib/node/$Button";
+import { $Form } from "./lib/node/$Form";
+import { $Input } from "./lib/node/$Input";
+import { $Container } from "./lib/node/$Container";
+import { $Element } from "./lib/node/$Element";
+import { $Label } from "./lib/node/$Label";
+import { Router } from "./lib/router/Router";
+import { $Image } from "./lib/node/$Image";
+import { $Canvas } from "./lib/node/$Canvas";
+import { $Dialog } from "./lib/node/$Dialog";
+import { $View } from "./lib/node/$View";
+import { $Select } from "./lib/node/$Select";
+import { $Option } from "./lib/node/$Option";
+import { $OptGroup } from "./lib/node/$OptGroup";
+import { $Textarea } from "./lib/node/$Textarea";
+import { $Util } from "./lib/$Util";
+import { $HTMLElement } from "./lib/node/$HTMLElement";
+import { $AsyncNode } from "./lib/node/$AsyncNode";
+
 export type $ = typeof $;
 export function $<E extends $Element = $Element>(query: `::${string}`): E[];
 export function $<E extends $Element = $Element>(query: `:${string}`): E | null;
 export function $(element: null): null;
 export function $<K extends keyof $.TagNameTypeMap>(resolver: K): $.TagNameTypeMap[K];
 export function $<K extends string>(resolver: K): $Container;
-export function $<H extends HTMLElement>(htmlElement: H): $.HTMLElementTo$ElementMap<H>;
+export function $<H extends HTMLElement>(htmlElement: H): $.$HTMLElementMap<H>;
 export function $<H extends Element>(element: H): $Element;
+export function $<N extends $Node>(node: N): N;
 export function $<H extends EventTarget>(element: H): $Element;
 export function $(element: null | HTMLElement | EventTarget): $Element | null;
 export function $(element: undefined): undefined;
 export function $(resolver: any) {
     if (typeof resolver === 'undefined') return resolver;
     if (resolver === null) return resolver;
+    if (resolver instanceof $Node) return resolver;
     if (typeof resolver === 'string') {
         if (resolver.startsWith('::')) return Array.from(document.querySelectorAll(resolver.replace(/^::/, ''))).map(dom => $(dom));
         else if (resolver.startsWith(':')) return $(document.querySelector(resolver.replace(/^:/, '')));
         else if (resolver in $.TagNameElementMap) {
             const instance = $.TagNameElementMap[resolver as keyof typeof $.TagNameElementMap]
             switch (instance) {
-                case $Element: return new $Element(resolver);
+                case $HTMLElement: return new $HTMLElement(resolver);
                 case $Anchor: return new $Anchor();
                 case $Container: return new $Container(resolver);
                 case $Input: return new $Input();
@@ -50,20 +56,22 @@ export function $(resolver: any) {
                 case $Option: return new $Option();
                 case $OptGroup: return new $OptGroup();
                 case $Textarea: return new $Textarea();
+                case $AsyncNode: return new $AsyncNode();
             }
         } else return new $Container(resolver);
     }
-    if (resolver instanceof HTMLElement || resolver instanceof Text) {
+    if (resolver instanceof HTMLElement || resolver instanceof Text || resolver instanceof SVGElement) {
         if (resolver.$) return resolver.$;
-        else return $Node.from(resolver);
+        else return $Util.from(resolver);
     }
-    throw '$: NOT SUPPORT TARGET ELEMENT TYPE'
+    throw `$: NOT SUPPORT TARGET ELEMENT TYPE ('${resolver}')`
 }
 export namespace $ {
-    export let anchorHandler: null | ((url: string, e: Event) => void) = null;
+    export let anchorHandler: null | (($a: $Anchor, e: Event) => void) = null;
     export let anchorPreventDefault: boolean = false;
     export const routers = new Set<Router>;
     export const TagNameElementMap = {
+        'body': $Container,
         'a': $Anchor,
         'p': $Container,
         'pre': $Container,
@@ -92,7 +100,8 @@ export namespace $ {
         'select': $Select,
         'option': $Option,
         'optgroup': $OptGroup,
-        'textarea': $Textarea
+        'textarea': $Textarea,
+        'async': $AsyncNode,
     }
     export type TagNameTypeMap = {
         [key in keyof typeof $.TagNameElementMap]: InstanceType<typeof $.TagNameElementMap[key]>;
@@ -100,7 +109,7 @@ export namespace $ {
     export type ContainerTypeTagName = Exclude<keyof TagNameTypeMap, 'input'>;
     export type SelfTypeTagName = 'input';
 
-    export type HTMLElementTo$ElementMap<H extends HTMLElement> = 
+    export type $HTMLElementMap<H extends HTMLElement> = 
     H extends HTMLLabelElement ? $Label 
     : H extends HTMLInputElement ? $Input
     : H extends HTMLAnchorElement ? $Anchor
@@ -116,6 +125,10 @@ export namespace $ {
     : H extends HTMLTextAreaElement ? $Textarea
     : $Container<H>;
 
+    export function open(path: string | URL | undefined) { return Router.open(path) }
+    export function replace(path: string | URL | undefined) { return Router.replace(path) }
+    export function back() { return Router.back() }
+
     /**
      * A helper for fluent method design. Return the `instance` object when arguments length not equal 0. Otherwise, return the `value`.
      * @param instance The object to return when arguments length not equal 0.
@@ -135,41 +148,34 @@ export namespace $ {
         else return [multable];
     }
     
-    export function mixin(target: any, constructors: OrArray<any>) {
-        orArrayResolve(constructors).forEach(constructor => {
-            Object.getOwnPropertyNames(constructor.prototype).forEach(name => {
-            if (name === 'constructor') return;
-            Object.defineProperty(
-                target.prototype,
-                name,
-                Object.getOwnPropertyDescriptor(constructor.prototype, name) || Object.create(null)
-            )
-            })
-        })
-        return target;
-    }
+    export function mixin(target: any, constructors: OrArray<any>) { return $Util.mixin(target, constructors) }
     /**
-     * A helper for $State.set() which apply value to target.
+     * A helper for undefined able value and $State.set() which apply value to target.
      * @param object Target object.
      * @param key The key of target object.
      * @param value Value of target property or parameter of method(Using Tuple to apply parameter).
      * @param methodKey Variant key name when apply value on $State.set()
      * @returns 
      */
-    export function set<O, K extends keyof O>(object: O, key: K, value: O[K] extends (...args: any) => any ? (Parameters<O[K]> | $State<Parameters<O[K]>>) : O[K] | undefined | $State<O[K]>, methodKey?: string) {
-        if (value === undefined) return;
-        if (value instanceof $State && object instanceof Node) {
-            value.use(object.$, methodKey ?? key as any);
-            const prop = object[key];
-            if (prop instanceof Function) prop(value.value);
-            else object[key] = value.value;
-            return;
-        }
-        object[key] = value as any;
+    export function set<O, K extends keyof O>(
+        object: O, key: K, 
+        value: O[K] extends (...args: any) => any 
+            ? (Parameters<O[K]> | $State<Parameters<O[K]> | undefined>) 
+            : (O[K] | undefined | $State<O[K] | undefined>), 
+        methodKey?: string) {
+            if (value === undefined) return;
+            if (value instanceof $State && object instanceof Node) {
+                value.use(object.$, methodKey ?? key as any);
+                if (object[key] instanceof Function) (object[key] as Function)(value)
+                else object[key] = value.value;
+                return;
+            }
+            if (object[key] instanceof Function) (object[key] as Function)(value);
+            else object[key] = value as any;
     }
     
-    export function state<T>(value: T) {
-        return new $State<T>(value)
+    export function state<T>(value: T, options?: $StateOption<T>) {
+        return new $State<T>(value, options)
     }
 
     export async function resize(object: Blob, size: number): Promise<string> {
@@ -200,6 +206,11 @@ export namespace $ {
         return parseInt(getComputedStyle(document.documentElement).fontSize) * amount
     }
 
+    export function html(html: string) {
+        const body = new DOMParser().parseFromString(html, 'text/html').body;
+        return Array.from(body.children).map(child => $(child))
+    }
+
     /**Build multiple element in once. */
     export function builder<F extends BuildNodeFunction, R extends ReturnType<F>>(bulder: F, params: [...Parameters<F>][], callback?: BuilderSelfFunction<R>): R[]
     export function builder<F extends BuildNodeFunction, R extends ReturnType<F>>(bulder: [F, ...Parameters<F>], size: number, callback?: BuilderSelfFunction<R>): R[]
@@ -237,5 +248,4 @@ export namespace $ {
 }
 type BuildNodeFunction = (...args: any[]) => $Node;
 type BuilderSelfFunction<K extends $Node> = (self: K) => void;
-globalThis.$ = $;
-
+globalThis.$ = $;
\ No newline at end of file
diff --git a/index.ts b/index.ts
index 0122ef7..2e65871 100644
--- a/index.ts
+++ b/index.ts
@@ -20,7 +20,7 @@ declare global {
     type ImageLoading = "eager" | "lazy";
     type ContructorType<T> = { new (...args: any[]): T }
     interface Node {
-        $: import('./lib/$Node').$Node;
+        $: import('./lib/node/$Node').$Node;
     }
 }
 Array.prototype.detype = function <T extends undefined | null, O>(this: O[], ...types: T[]) {
@@ -30,20 +30,22 @@ Array.prototype.detype = function <T extends undefined | null, O>(this: O[], ...
     }) as Exclude<O, T>[];
 }
 export * from "./$index";
-export * from "./lib/Router/Route";
-export * from "./lib/Router/Router";
-export * from "./lib/$Node";
-export * from "./lib/$Anchor";
-export * from "./lib/$Element";
+export * from "./lib/router/Route";
+export * from "./lib/router/Router";
+export * from "./lib/node/$Node";
+export * from "./lib/node/$Anchor";
+export * from "./lib/node/$Element";
 export * from "./lib/$NodeManager";
-export * from "./lib/$Text";
-export * from "./lib/$Container";
-export * from "./lib/$Button";
-export * from "./lib/$Form";
+export * from "./lib/node/$Text";
+export * from "./lib/node/$Container";
+export * from "./lib/node/$Button";
+export * from "./lib/node/$Form";
 export * from "./lib/$EventManager";
 export * from "./lib/$State";
-export * from "./lib/$View";
-export * from "./lib/$Select";
-export * from "./lib/$Option";
-export * from "./lib/$OptGroup";
-export * from "./lib/$Textarea";
\ No newline at end of file
+export * from "./lib/node/$View";
+export * from "./lib/node/$Select";
+export * from "./lib/node/$Option";
+export * from "./lib/node/$OptGroup";
+export * from "./lib/node/$Textarea";
+export * from "./lib/node/$Image";
+export * from "./lib/node/$AsyncNode";
\ No newline at end of file
diff --git a/lib/$EventManager.ts b/lib/$EventManager.ts
index f6bc676..35cc005 100644
--- a/lib/$EventManager.ts
+++ b/lib/$EventManager.ts
@@ -1,11 +1,11 @@
 export abstract class $EventMethod<EM> {
     abstract events: $EventManager<EM>;
     //@ts-expect-error
-    on<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) { this.events.on(type, callback); return this }
+    on<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) { this.events.on(type, callback); return this }
     //@ts-expect-error
-    off<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) { this.events.off(type, callback); return this }
+    off<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) { this.events.off(type, callback); return this }
     //@ts-expect-error
-    once<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) { this.events.once(type, callback); return this }
+    once<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) { this.events.once(type, callback); return this }
 }
 export class $EventManager<EM> {
     private eventMap = new Map<string, $Event>();
@@ -25,17 +25,17 @@ export class $EventManager<EM> {
         return this
     }
     //@ts-expect-error
-    on<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) { 
+    on<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) { 
         this.get(type).add(callback);
         return this
     }
     //@ts-expect-error
-    off<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) {
+    off<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) {
         this.get(type).delete(callback);
         return this
     }
     //@ts-expect-error
-    once<K extends keyof EM>(type: K, callback: (...args: EM[K]) => void) {
+    once<K extends keyof EM>(type: K, callback: (...args: EM[K]) => any) {
         //@ts-expect-error
         const onceFn = (...args: EM[K]) => {
             this.get(type).delete(onceFn);
diff --git a/lib/$NodeManager.ts b/lib/$NodeManager.ts
index b6c211e..20a257f 100644
--- a/lib/$NodeManager.ts
+++ b/lib/$NodeManager.ts
@@ -1,6 +1,6 @@
-import { $Container } from "./$Container";
-import { $Node } from "./$Node";
-import { $Text } from "./$Text";
+import { $Container } from "./node/$Container";
+import { $Node } from "./node/$Node";
+import { $Text } from "./node/$Text";
 
 export class $NodeManager {
     #container: $Container;
@@ -12,10 +12,8 @@ export class $NodeManager {
     add(element: $Node | string) {
         if (typeof element === 'string') {
             const text = new $Text(element);
-            (text as Mutable<$Text>).parent = this.#container;
             this.elementList.add(text);
         } else {
-            (element as Mutable<$Node>).parent = this.#container;
             this.elementList.add(element);
         }
     }
@@ -23,7 +21,6 @@ export class $NodeManager {
     remove(element: $Node) {
         if (!this.elementList.has(element)) return this;
         this.elementList.delete(element);
-        (element as Mutable<$Node>).parent = undefined;
         return this;
     }
 
@@ -39,8 +36,6 @@ export class $NodeManager {
         })
         this.elementList.clear();
         array.forEach(node => this.elementList.add(node));
-        (target as Mutable<$Node>).parent = undefined;
-        (replace as Mutable<$Node>).parent = this.#container;
         return this;
     }
 
diff --git a/lib/$OptGroup.ts b/lib/$OptGroup.ts
deleted file mode 100644
index 342d4a6..0000000
--- a/lib/$OptGroup.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-import { $Container, $ContainerOptions } from "./$Container";
-import { $State } from "./$State";
-
-export interface $OptGroupOptions extends $ContainerOptions {}
-export class $OptGroup extends $Container<HTMLOptGroupElement> {
-    constructor(options?: $OptGroupOptions) {
-        super('optgroup', options);
-    }
-    
-    disabled(): boolean;
-    disabled(disabled: boolean | $State<boolean>): this;
-    disabled(disabled?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
-    
-    label(): string;
-    label(label: string | $State<string>): this;
-    label(label?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.label, () => $.set(this.dom, 'label', label))}
-}
\ No newline at end of file
diff --git a/lib/$Option.ts b/lib/$Option.ts
deleted file mode 100644
index e8093e4..0000000
--- a/lib/$Option.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-import { $Container, $ContainerOptions } from "./$Container";
-import { $State } from "./$State";
-
-export interface $OptionOptions extends $ContainerOptions {}
-export class $Option extends $Container<HTMLOptionElement> {
-    constructor(options?: $OptionOptions) {
-        super('option', options);
-    }
-
-    defaultSelected(): boolean;
-    defaultSelected(defaultSelected: boolean | $State<boolean>): this;
-    defaultSelected(defaultSelected?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.defaultSelected, () => $.set(this.dom, 'defaultSelected', defaultSelected))}
-    
-    disabled(): boolean;
-    disabled(disabled: boolean | $State<boolean>): this;
-    disabled(disabled?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
-    
-    label(): string;
-    label(label: string | $State<string>): this;
-    label(label?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.label, () => $.set(this.dom, 'label', label))}
-    
-    selected(): boolean;
-    selected(selected: boolean | $State<boolean>): this;
-    selected(selected?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.selected, () => $.set(this.dom, 'selected', selected))}
-    
-    text(): string;
-    text(text: string | $State<string>): this;
-    text(text?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.text, () => $.set(this.dom, 'text', text))}
-    
-    value(): string;
-    value(value: string | $State<string>): this;
-    value(value?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
-    
-    get form() { return this.dom.form ? $(this.dom.form) : null }
-    get index() { return this.dom.index }
-
-}
\ No newline at end of file
diff --git a/lib/$State.ts b/lib/$State.ts
index 10b5d9e..c622b70 100644
--- a/lib/$State.ts
+++ b/lib/$State.ts
@@ -1,22 +1,33 @@
-import { $Node } from "./$Node";
+import { $Node } from "./node/$Node";
 
+export interface $StateOption<T> {
+    format: (value: T) => string;
+}
 export class $State<T> {
     readonly value: T;
     readonly attributes = new Map<$Node, Set<string | number | symbol>>();
-    constructor(value: T) {
+    options: Partial<$StateOption<T>> = {}
+    constructor(value: T, options?: $StateOption<T>) {
         this.value = value;
+        if (options) this.options = options;
     }
     set(value: T) {
         (this as Mutable<$State<T>>).value = value;
         for (const [node, attrList] of this.attributes.entries()) {
             for (const attr of attrList) {
                 //@ts-expect-error
-                if (node[attr] instanceof Function) node[attr](value)
+                if (node[attr] instanceof Function) {
+                    //@ts-expect-error
+                    if (this.options.format) node[attr](this.options.format(value))
+                    //@ts-expect-error
+                    else node[attr](value)
+                }
             }
         }
     }
 
     toString(): string {
+        if (this.options.format) return this.options.format(this.value);
         return `${this.value}`
     }
 
@@ -25,4 +36,6 @@ export class $State<T> {
         if (attrList) attrList.add(attrName);
         else this.attributes.set($node, new Set<string | number | symbol>().add(attrName))
     }
-};
\ No newline at end of file
+};
+
+export type $StateArgument<T> = T | $State<T | undefined>;
\ No newline at end of file
diff --git a/lib/$Util.ts b/lib/$Util.ts
index 7f5d166..0d06872 100644
--- a/lib/$Util.ts
+++ b/lib/$Util.ts
@@ -1,4 +1,8 @@
 import { $State } from "./$State";
+import { $Container } from "./node/$Container";
+import { $Node } from "./node/$Node";
+import { $SVGElement } from "./node/$SVGElement";
+import { $Text } from "./node/$Text";
 
 export namespace $Util {
     export function fluent<T, A, V>(instance: T, args: IArguments, value: () => V, action: (...args: any[]) => void) {
@@ -7,13 +11,13 @@ export namespace $Util {
         return instance;
     }
     
-    export function multableResolve<T>(multable: OrArray<T>) {
+    export function orArrayResolve<T>(multable: OrArray<T>) {
         if (multable instanceof Array) return multable;
         else return [multable];
     }
     
     export function mixin(target: any, constructors: OrArray<any>) {
-        multableResolve(constructors).forEach(constructor => {
+        orArrayResolve(constructors).forEach(constructor => {
             Object.getOwnPropertyNames(constructor.prototype).forEach(name => {
             if (name === 'constructor') return;
             Object.defineProperty(
@@ -33,4 +37,26 @@ export namespace $Util {
     export function state<T>(value: T) {
         return new $State<T>(value)
     }
+
+    export function from(element: HTMLElement | Text | Node): $Node {
+        if (element.$) return element.$;
+        if (element.nodeName.toLowerCase() === 'body') return new $Container('body', {dom: element as HTMLBodyElement});
+        else if (element instanceof HTMLElement) {
+            const instance = $.TagNameElementMap[element.tagName.toLowerCase() as keyof typeof $.TagNameElementMap];
+            const $node = instance === $Container ? new instance(element.tagName, {dom: element}) : new instance({dom: element} as any);
+            if ($node instanceof $Container) for (const childnode of Array.from($node.dom.childNodes)) {
+                $node.children.add($(childnode));
+            }
+            return $node as $Node;
+        }
+        else if (element instanceof Text) {
+            const node = new $Text(element.textContent ?? '') as Mutable<$Node>;
+            node.dom = element;
+            return node as $Node;
+        }
+        else if (element instanceof SVGElement) {
+            if (element.tagName.toLowerCase() === 'svg') {return new $SVGElement('svg', {dom: element}) };
+        }
+        throw `$NODE.FROM: NOT SUPPORT TARGET ELEMENT TYPE (${element.nodeName})`
+    }
 }
\ No newline at end of file
diff --git a/lib/$Anchor.ts b/lib/node/$Anchor.ts
similarity index 83%
rename from lib/$Anchor.ts
rename to lib/node/$Anchor.ts
index 3a42aae..87bf5fe 100644
--- a/lib/$Anchor.ts
+++ b/lib/node/$Anchor.ts
@@ -8,7 +8,7 @@ export class $Anchor extends $Container<HTMLAnchorElement> {
         // Link Handler event
         this.dom.addEventListener('click', e => {
             if ($.anchorPreventDefault) e.preventDefault();
-            if ($.anchorHandler && !!this.href()) $.anchorHandler(this.href(), e)
+            if ($.anchorHandler && !!this.href()) $.anchorHandler(this, e)
         })
     }
     /**Set URL of anchor element. */
@@ -16,9 +16,9 @@ export class $Anchor extends $Container<HTMLAnchorElement> {
     href(url: string | undefined): this;
     href(url?: string | undefined) { return $.fluent(this, arguments, () => this.dom.href, () => {if (url) this.dom.href = url}) }
     /**Link open with this window, new tab or other */
-    target(): string;
+    target(): $AnchorTarget | undefined;
     target(target: $AnchorTarget | undefined): this;
-    target(target?: $AnchorTarget | undefined) { return $.fluent(this, arguments, () => this.dom.target, () => {if (target) this.dom.target = target}) }
+    target(target?: $AnchorTarget | undefined) { return $.fluent(this, arguments, () => (this.dom.target ?? undefined) as $AnchorTarget | undefined, () => {if (target) this.dom.target = target}) }
 }
 
 export type $AnchorTarget = '_blank' | '_self' | '_parent' | '_top';
\ No newline at end of file
diff --git a/lib/node/$AsyncNode.ts b/lib/node/$AsyncNode.ts
new file mode 100644
index 0000000..5f233ec
--- /dev/null
+++ b/lib/node/$AsyncNode.ts
@@ -0,0 +1,22 @@
+import { $Node } from "./$Node";
+
+export class $AsyncNode<N extends $Node = $Node> extends $Node {
+    dom: Node = document.createElement('async');
+    loaded: boolean = false;
+    constructor($node?: Promise<N>) {
+        super()
+        this.dom.$ = this;
+        if ($node) $node.then($node => this._loaded($node));
+    }
+
+    await<T extends $Node = $Node>($node: Promise<T>) {
+        $node.then($node => this._loaded($node));
+        return this as $AsyncNode<T>
+    }
+
+    protected _loaded($node: $Node) {
+        this.loaded = true;
+        this.replace($node)
+        this.dom.dispatchEvent(new Event('load'))
+    }
+}
\ No newline at end of file
diff --git a/lib/$Button.ts b/lib/node/$Button.ts
similarity index 86%
rename from lib/$Button.ts
rename to lib/node/$Button.ts
index d575d6f..8accab0 100644
--- a/lib/$Button.ts
+++ b/lib/node/$Button.ts
@@ -1,5 +1,5 @@
 import { $Container, $ContainerOptions } from "./$Container";
-import { $State } from "./$State";
+import { $State, $StateArgument } from "../$State";
 export interface $ButtonOptions extends $ContainerOptions {}
 export class $Button extends $Container<HTMLButtonElement> {
     constructor(options?: $ButtonOptions) {
@@ -7,8 +7,8 @@ export class $Button extends $Container<HTMLButtonElement> {
     }
     
     disabled(): boolean;
-    disabled(disabled: boolean | $State<boolean>): this;
-    disabled(disabled?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
+    disabled(disabled: $StateArgument<boolean>): this;
+    disabled(disabled?: $StateArgument<boolean>) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
     
     type(): ButtonType;
     type(type: ButtonType): this;
diff --git a/lib/$Canvas.ts b/lib/node/$Canvas.ts
similarity index 100%
rename from lib/$Canvas.ts
rename to lib/node/$Canvas.ts
diff --git a/lib/$Container.ts b/lib/node/$Container.ts
similarity index 88%
rename from lib/$Container.ts
rename to lib/node/$Container.ts
index 9d6177f..06b2b66 100644
--- a/lib/$Container.ts
+++ b/lib/node/$Container.ts
@@ -1,12 +1,12 @@
 import { $Element, $ElementOptions } from "./$Element";
-import { $NodeManager } from "./$NodeManager";
+import { $NodeManager } from "../$NodeManager";
 import { $Node } from "./$Node";
-import { $State } from "./$State";
+import { $State } from "../$State";
 import { $Text } from "./$Text";
+import { $HTMLElement, $HTMLElementOptions } from "./$HTMLElement";
 
-export interface $ContainerOptions extends $ElementOptions {}
-
-export class $Container<H extends HTMLElement = HTMLElement> extends $Element<H> {
+export interface $ContainerOptions extends $HTMLElementOptions {}
+export class $Container<H extends HTMLElement = HTMLElement> extends $HTMLElement<H> {
     readonly children: $NodeManager = new $NodeManager(this);
     constructor(tagname: string, options?: $ContainerOptions) {
         super(tagname, options)
diff --git a/lib/$Dialog.ts b/lib/node/$Dialog.ts
similarity index 100%
rename from lib/$Dialog.ts
rename to lib/node/$Dialog.ts
diff --git a/lib/$Element.ts b/lib/node/$Element.ts
similarity index 54%
rename from lib/$Element.ts
rename to lib/node/$Element.ts
index 2de8f0b..3537a38 100644
--- a/lib/$Element.ts
+++ b/lib/node/$Element.ts
@@ -3,18 +3,26 @@ import { $Node } from "./$Node";
 export interface $ElementOptions {
     id?: string;
     class?: string[];
+    dom?: HTMLElement | SVGElement;
 }
 
-export class $Element<H extends HTMLElement = HTMLElement> extends $Node<H> {
+export class $Element<H extends HTMLElement | SVGElement = HTMLElement> extends $Node<H> {
     readonly dom: H;
     private static_classes = new Set<string>();
     constructor(tagname: string, options?: $ElementOptions) {
         super();
-        this.dom = document.createElement(tagname) as H;
+        this.dom = this.createDom(tagname, options) as H;
         this.dom.$ = this;
         this.setOptions(options);
     }
 
+    private createDom(tagname: string, options?: $ElementOptions) {
+        if (options?.dom) return options.dom;
+        if (tagname === 'svg') return document.createElementNS("http://www.w3.org/2000/svg", "svg");
+        return document.createElement(tagname);
+
+    }
+
     setOptions(options: $ElementOptions | undefined) {
         this.id(options?.id)
         if (options && options.class) this.class(...options.class)
@@ -24,7 +32,7 @@ export class $Element<H extends HTMLElement = HTMLElement> extends $Node<H> {
     /**Replace id of element. @example Element.id('customId');*/
     id(): string;
     id(name: string | undefined): this;
-    id(name?: string | undefined): this | string {return $.fluent(this, arguments, () => this.dom.id, () => $.set(this.dom, 'id', name))}
+    id(name?: string | undefined): this | string {return $.fluent(this, arguments, () => this.dom.id, () => $.set(this.dom, 'id', name as any))}
 
     /**Replace list of class name to element. @example Element.class('name1', 'name2') */
     class(): DOMTokenList;
@@ -46,74 +54,32 @@ export class $Element<H extends HTMLElement = HTMLElement> extends $Node<H> {
     css(style: Partial<CSSStyleDeclaration>): this;
     css(style?: Partial<CSSStyleDeclaration>) { return $.fluent(this, arguments, () => this.dom.style, () => {Object.assign(this.dom.style, style)})}
     
+    /**
+     * Get or set attribute from this element.
+     * @param qualifiedName Attribute name
+     * @param value Attribute value. Set `null` will remove attribute.
+     */
     attribute(qualifiedName: string | undefined): string | null;
-    attribute(qualifiedName: string | undefined, value?: string | number | boolean): this;
-    attribute(qualifiedName: string | undefined, value?: string | number | boolean): this | string | null { 
+    attribute(qualifiedName: string | undefined, value?: string | number | boolean | null): this;
+    attribute(qualifiedName: string | undefined, value?: string | number | boolean | null): this | string | null { 
         if (!arguments.length) return null;
         if (arguments.length === 1) {
             if (qualifiedName === undefined) return null;
             return this.dom.getAttribute(qualifiedName);
         }
         if (arguments.length === 2) {
-            if (qualifiedName && value) this.dom.setAttribute(qualifiedName, `${value}`);
+            if (!qualifiedName) return this;
+            if (value === null) this.dom.removeAttribute(qualifiedName);
+            else if (value !== undefined) this.dom.setAttribute(qualifiedName, `${value}`);
             return this;
         }
         return this;
     }
     
-    autocapitalize(): Autocapitalize;
-    autocapitalize(autocapitalize?: Autocapitalize): this;
-    autocapitalize(autocapitalize?: Autocapitalize) { return $.fluent(this, arguments, () => this.dom.autocapitalize, () => $.set(this.dom, 'autocapitalize', autocapitalize))}
-
-    dir(): TextDirection;
-    dir(dir?: TextDirection): this;
-    dir(dir?: TextDirection) { return $.fluent(this, arguments, () => this.dom.dir, () => $.set(this.dom, 'dir', dir))}
-
-    innerText(): string;
-    innerText(text?: string): this;
-    innerText(text?: string) { return $.fluent(this, arguments, () => this.dom.innerText, () => $.set(this.dom, 'innerText', text))}
-
-    title(): string;
-    title(title?: string): this;
-    title(title?: string) { return $.fluent(this, arguments, () => this.dom.title, () => $.set(this.dom, 'title', title))}
-
-    translate(): boolean;
-    translate(translate?: boolean): this;
-    translate(translate?: boolean) { return $.fluent(this, arguments, () => this.dom.translate, () => $.set(this.dom, 'translate', translate))}
-
-    popover(): string | null;
-    popover(popover?: string | null): this;
-    popover(popover?: string | null) { return $.fluent(this, arguments, () => this.dom.popover, () => $.set(this.dom, 'popover', popover))}
-
-    spellcheck(): boolean;
-    spellcheck(spellcheck?: boolean): this;
-    spellcheck(spellcheck?: boolean) { return $.fluent(this, arguments, () => this.dom.spellcheck, () => $.set(this.dom, 'spellcheck', spellcheck))}
-
-    inert(): boolean;
-    inert(inert?: boolean): this;
-    inert(inert?: boolean) { return $.fluent(this, arguments, () => this.dom.inert, () => $.set(this.dom, 'inert', inert))}
-
-    lang(): string;
-    lang(lang?: string): this;
-    lang(lang?: string) { return $.fluent(this, arguments, () => this.dom.lang, () => $.set(this.dom, 'lang', lang))}
-
-    draggable(): boolean;
-    draggable(draggable?: boolean): this;
-    draggable(draggable?: boolean) { return $.fluent(this, arguments, () => this.dom.draggable, () => $.set(this.dom, 'draggable', draggable))}
-
-    hidden(): boolean;
-    hidden(hidden?: boolean): this;
-    hidden(hidden?: boolean) { return $.fluent(this, arguments, () => this.dom.hidden, () => $.set(this.dom, 'hidden', hidden))}
-
     tabIndex(): number;
     tabIndex(tabIndex: number): this;
-    tabIndex(tabIndex?: number) { return $.fluent(this, arguments, () => this.dom.tabIndex, () => $.set(this.dom, 'tabIndex', tabIndex))}
+    tabIndex(tabIndex?: number) { return $.fluent(this, arguments, () => this.dom.tabIndex, () => $.set(this.dom, 'tabIndex', tabIndex as any))}
 
-    click() { this.dom.click(); return this; }
-    attachInternals() { return this.dom.attachInternals(); }
-    hidePopover() { this.dom.hidePopover(); return this; }
-    showPopover() { this.dom.showPopover(); return this; }
-    togglePopover() { this.dom.togglePopover(); return this; }
     focus() { this.dom.focus(); return this; }
     blur() { this.dom.blur(); return this; }
 
@@ -125,11 +91,5 @@ export class $Element<H extends HTMLElement = HTMLElement> extends $Node<H> {
 
     getAnimations(options?: GetAnimationsOptions) { return this.dom.getAnimations(options) }
 
-    get accessKeyLabel() { return this.dom.accessKeyLabel }
-    get offsetHeight() { return this.dom.offsetHeight }
-    get offsetLeft() { return this.dom.offsetLeft }
-    get offsetParent() { return $(this.dom.offsetParent) }
-    get offsetTop() { return this.dom.offsetTop }
-    get offsetWidth() { return this.dom.offsetWidth }
     get dataset() { return this.dom.dataset }
 }
\ No newline at end of file
diff --git a/lib/$Form.ts b/lib/node/$Form.ts
similarity index 97%
rename from lib/$Form.ts
rename to lib/node/$Form.ts
index d39881d..208b8db 100644
--- a/lib/$Form.ts
+++ b/lib/node/$Form.ts
@@ -1,6 +1,4 @@
 import { $Container, $ContainerOptions } from "./$Container";
-import { $State } from "./$State";
-import { $Util } from "./$Util";
 export interface $FormOptions extends $ContainerOptions {}
 export class $Form extends $Container<HTMLFormElement> {
     constructor(options?: $FormOptions) {
diff --git a/lib/node/$HTMLElement.ts b/lib/node/$HTMLElement.ts
new file mode 100644
index 0000000..cac0bc9
--- /dev/null
+++ b/lib/node/$HTMLElement.ts
@@ -0,0 +1,65 @@
+import { $Element, $ElementOptions } from "./$Element";
+
+export interface $HTMLElementOptions extends $ElementOptions {}
+export class $HTMLElement<H extends HTMLElement = HTMLElement> extends $Element<H> {
+    constructor(tagname: string, options?: $HTMLElementOptions) {
+        super(tagname, options)
+    }
+
+    autocapitalize(): Autocapitalize;
+    autocapitalize(autocapitalize?: Autocapitalize): this;
+    autocapitalize(autocapitalize?: Autocapitalize) { return $.fluent(this, arguments, () => this.dom.autocapitalize, () => $.set(this.dom, 'autocapitalize', autocapitalize as any))}
+
+    innerText(): string;
+    innerText(text?: string): this;
+    innerText(text?: string) { return $.fluent(this, arguments, () => this.dom.innerText, () => $.set(this.dom, 'innerText', text as any))}
+
+    title(): string;
+    title(title?: string): this;
+    title(title?: string) { return $.fluent(this, arguments, () => this.dom.title, () => $.set(this.dom, 'title', title as any))}
+
+    dir(): TextDirection;
+    dir(dir?: TextDirection): this;
+    dir(dir?: TextDirection) { return $.fluent(this, arguments, () => this.dom.dir, () => $.set(this.dom, 'dir', dir as any))}
+
+    translate(): boolean;
+    translate(translate?: boolean): this;
+    translate(translate?: boolean) { return $.fluent(this, arguments, () => this.dom.translate, () => $.set(this.dom, 'translate', translate as any))}
+
+    popover(): string | null;
+    popover(popover?: string | null): this;
+    popover(popover?: string | null) { return $.fluent(this, arguments, () => this.dom.popover, () => $.set(this.dom, 'popover', popover as any))}
+
+    spellcheck(): boolean;
+    spellcheck(spellcheck?: boolean): this;
+    spellcheck(spellcheck?: boolean) { return $.fluent(this, arguments, () => this.dom.spellcheck, () => $.set(this.dom, 'spellcheck', spellcheck as any))}
+
+    inert(): boolean;
+    inert(inert?: boolean): this;
+    inert(inert?: boolean) { return $.fluent(this, arguments, () => this.dom.inert, () => $.set(this.dom, 'inert', inert as any))}
+
+    lang(): string;
+    lang(lang?: string): this;
+    lang(lang?: string) { return $.fluent(this, arguments, () => this.dom.lang, () => $.set(this.dom, 'lang', lang as any))}
+
+    draggable(): boolean;
+    draggable(draggable?: boolean): this;
+    draggable(draggable?: boolean) { return $.fluent(this, arguments, () => this.dom.draggable, () => $.set(this.dom, 'draggable', draggable as any))}
+
+    hidden(): boolean;
+    hidden(hidden?: boolean): this;
+    hidden(hidden?: boolean) { return $.fluent(this, arguments, () => this.dom.hidden, () => $.set(this.dom, 'hidden', hidden as any))}
+
+    click() { this.dom.click(); return this; }
+    attachInternals() { return this.dom.attachInternals(); }
+    hidePopover() { this.dom.hidePopover(); return this; }
+    showPopover() { this.dom.showPopover(); return this; }
+    togglePopover() { this.dom.togglePopover(); return this; }
+
+    get accessKeyLabel() { return this.dom.accessKeyLabel }
+    get offsetHeight() { return this.dom.offsetHeight }
+    get offsetLeft() { return this.dom.offsetLeft }
+    get offsetParent() { return $(this.dom.offsetParent) }
+    get offsetTop() { return this.dom.offsetTop }
+    get offsetWidth() { return this.dom.offsetWidth }
+}
\ No newline at end of file
diff --git a/lib/$Image.ts b/lib/node/$Image.ts
similarity index 89%
rename from lib/$Image.ts
rename to lib/node/$Image.ts
index 96b5c08..096f049 100644
--- a/lib/$Image.ts
+++ b/lib/node/$Image.ts
@@ -1,11 +1,19 @@
-import { $Element, $ElementOptions } from "./$Element";
-import { $State } from "./$State";
-export interface $ImageOptions extends $ElementOptions {}
-export class $Image extends $Element<HTMLImageElement> {
+import { $HTMLElement, $HTMLElementOptions } from "./$HTMLElement";
+import { $State } from "../$State";
+export interface $ImageOptions extends $HTMLElementOptions {}
+export class $Image extends $HTMLElement<HTMLImageElement> {
     constructor(options?: $ImageOptions) {
         super('img', options);
     }
 
+    async load(src: string): Promise<$Image> {
+        return new Promise(resolve => {
+            const $img = this.once('load', () => {
+                resolve($img)
+            }).src(src)
+        })
+    }
+
     /**HTMLImageElement base property */
     alt(): string;
     alt(alt: string): this;
diff --git a/lib/$Input.ts b/lib/node/$Input.ts
similarity index 95%
rename from lib/$Input.ts
rename to lib/node/$Input.ts
index 10a7502..9f22844 100644
--- a/lib/$Input.ts
+++ b/lib/node/$Input.ts
@@ -1,5 +1,5 @@
 import { $Element, $ElementOptions } from "./$Element";
-import { $State } from "./$State";
+import { $State, $StateArgument } from "../$State";
 
 export interface $InputOptions extends $ElementOptions {}
 export class $Input extends $Element<HTMLInputElement> {
@@ -172,12 +172,12 @@ export class $Input extends $Element<HTMLInputElement> {
     formTarget(target?: string) { return $.fluent(this, arguments, () => this.dom.formTarget, () => $.set(this.dom, 'formTarget', target))}
     
     name(): string;
-    name(name?: string | $State<string>): this;
-    name(name?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
+    name(name?: $StateArgument<string> | undefined): this;
+    name(name?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
     
     value(): string;
-    value(value?: string | $State<string>): this;
-    value(value?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
+    value(value: $StateArgument<string> | undefined): this;
+    value(value?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
 
     get form() { return this.dom.form ? $(this.dom.form) : null }
     get labels() { return Array.from(this.dom.labels ?? []).map(label => $(label)) }
diff --git a/lib/$Label.ts b/lib/node/$Label.ts
similarity index 100%
rename from lib/$Label.ts
rename to lib/node/$Label.ts
diff --git a/lib/$Node.ts b/lib/node/$Node.ts
similarity index 69%
rename from lib/$Node.ts
rename to lib/node/$Node.ts
index 227fb96..59d0194 100644
--- a/lib/$Node.ts
+++ b/lib/node/$Node.ts
@@ -1,13 +1,12 @@
-import { $Element, $State, $Text } from "../index";
+import { $, $Element, $State, $Text } from "../../index";
 import { $Container } from "./$Container";
 
 export abstract class $Node<N extends Node = Node> {
-    readonly parent?: $Container;
     abstract readonly dom: N;
     readonly __hidden: boolean = false;
     private domEvents: {[key: string]: Map<Function, Function>} = {};
 
-    on<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => void, options?: AddEventListenerOptions | boolean) { 
+    on<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => any, options?: AddEventListenerOptions | boolean) { 
         if (!this.domEvents[type]) this.domEvents[type] = new Map()
         const middleCallback = (e: Event) => callback(e as HTMLElementEventMap[K], this);
         this.domEvents[type].set(callback, middleCallback)
@@ -15,13 +14,13 @@ export abstract class $Node<N extends Node = Node> {
         return this;
     }
 
-    off<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => void, options?: AddEventListenerOptions | boolean) { 
+    off<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => any, options?: AddEventListenerOptions | boolean) { 
         const middleCallback = this.domEvents[type]?.get(callback);
         if (middleCallback) this.dom.removeEventListener(type, middleCallback as EventListener, options)
         return this;
     }
 
-    once<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => void, options?: AddEventListenerOptions | boolean) { 
+    once<K extends keyof HTMLElementEventMap>(type: K, callback: (event: HTMLElementEventMap[K], $node: this) => any, options?: AddEventListenerOptions | boolean) { 
         const onceFn = (event: Event) => {
             this.dom.removeEventListener(type, onceFn, options)
             callback(event as HTMLElementEventMap[K], this);
@@ -52,7 +51,7 @@ export abstract class $Node<N extends Node = Node> {
         return this;
     }
 
-    contains(target: $Node | EventTarget | Node | null) {
+    contains(target: $Node | EventTarget | Node | null): boolean {
         if (!target) return false;
         if (target instanceof $Node) return this.dom.contains(target.dom);
         else if (target instanceof EventTarget) return this.dom.contains($(target).dom)
@@ -61,25 +60,12 @@ export abstract class $Node<N extends Node = Node> {
 
     self(callback: ($node: this) => void) { callback(this); return this; }
     inDOM() { return document.contains(this.dom); }
-    isElement() {
+    isElement(): $Element | undefined {
         if (this instanceof $Element) return this;
         else return undefined;
     }
 
-    static from(element: HTMLElement | Text): $Node {
-        if (element.$) return element.$;
-        else if (element instanceof HTMLElement) {
-            const node = $(element.tagName) as Mutable<$Node>;
-            node.dom = element;
-            if (element.parentElement) node.parent = $(element.parentElement) as $Container;
-            return node as $Node;
-        }
-        else if (element instanceof Text) {
-            const node = new $Text(element.textContent ?? '') as Mutable<$Node>;
-            node.dom = element;
-            if (element.parentElement) node.parent = $(element.parentElement) as $Container;
-            return node as $Node;
-        }
-        throw '$NODE.FROM: NOT SUPPORT TARGET ELEMENT TYPE'
+    get parent() {
+        return this.dom.parentElement?.$ as $Container | undefined;
     }
 }
\ No newline at end of file
diff --git a/lib/node/$OptGroup.ts b/lib/node/$OptGroup.ts
new file mode 100644
index 0000000..a99034a
--- /dev/null
+++ b/lib/node/$OptGroup.ts
@@ -0,0 +1,17 @@
+import { $Container, $ContainerOptions } from "./$Container";
+import { $State, $StateArgument } from "../$State";
+
+export interface $OptGroupOptions extends $ContainerOptions {}
+export class $OptGroup extends $Container<HTMLOptGroupElement> {
+    constructor(options?: $OptGroupOptions) {
+        super('optgroup', options);
+    }
+    
+    disabled(): boolean;
+    disabled(disabled: $StateArgument<boolean> | undefined): this;
+    disabled(disabled?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
+    
+    label(): string;
+    label(label: $StateArgument<string> | undefined): this;
+    label(label?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.label, () => $.set(this.dom, 'label', label))}
+}
\ No newline at end of file
diff --git a/lib/node/$Option.ts b/lib/node/$Option.ts
new file mode 100644
index 0000000..eabf21b
--- /dev/null
+++ b/lib/node/$Option.ts
@@ -0,0 +1,37 @@
+import { $Container, $ContainerOptions } from "./$Container";
+import { $State, $StateArgument } from "../$State";
+
+export interface $OptionOptions extends $ContainerOptions {}
+export class $Option extends $Container<HTMLOptionElement> {
+    constructor(options?: $OptionOptions) {
+        super('option', options);
+    }
+
+    defaultSelected(): boolean;
+    defaultSelected(defaultSelected: $StateArgument<boolean> | undefined): this;
+    defaultSelected(defaultSelected?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.defaultSelected, () => $.set(this.dom, 'defaultSelected', defaultSelected))}
+    
+    disabled(): boolean;
+    disabled(disabled: $StateArgument<boolean> | undefined): this;
+    disabled(disabled?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
+    
+    label(): string;
+    label(label: $StateArgument<string> | undefined): this;
+    label(label?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.label, () => $.set(this.dom, 'label', label))}
+    
+    selected(): boolean;
+    selected(selected: $StateArgument<boolean> | undefined): this;
+    selected(selected?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.selected, () => $.set(this.dom, 'selected', selected))}
+    
+    text(): string;
+    text(text: $StateArgument<string> | undefined): this;
+    text(text?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.text, () => $.set(this.dom, 'text', text))}
+    
+    value(): string;
+    value(value: $StateArgument<string> | undefined): this;
+    value(value?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
+    
+    get form() { return this.dom.form ? $(this.dom.form) : null }
+    get index() { return this.dom.index }
+
+}
\ No newline at end of file
diff --git a/lib/node/$SVGElement.ts b/lib/node/$SVGElement.ts
new file mode 100644
index 0000000..4128b46
--- /dev/null
+++ b/lib/node/$SVGElement.ts
@@ -0,0 +1,8 @@
+import { $Element, $ElementOptions } from "./$Element"
+
+export interface $SVGOptions extends $ElementOptions {}
+export class $SVGElement<S extends SVGElement> extends $Element<S> {
+    constructor(tagname: string, options?: $SVGOptions) {
+        super(tagname, options);
+    }
+}
\ No newline at end of file
diff --git a/lib/$Select.ts b/lib/node/$Select.ts
similarity index 64%
rename from lib/$Select.ts
rename to lib/node/$Select.ts
index 6d917e5..b72dbac 100644
--- a/lib/$Select.ts
+++ b/lib/node/$Select.ts
@@ -1,11 +1,11 @@
 import { $Container, $ContainerOptions } from "./$Container";
 import { $OptGroup } from "./$OptGroup";
 import { $Option } from "./$Option";
-import { $State } from "./$State";
+import { $State, $StateArgument } from "../$State";
 
 export interface $SelectOptions extends $ContainerOptions {}
 export class $Select extends $Container<HTMLSelectElement> {
-    constructor() {
+    constructor(options?: $SelectOptions) {
         super('select')
     }
 
@@ -18,12 +18,12 @@ export class $Select extends $Container<HTMLSelectElement> {
     namedItem(name: string) { return $(this.dom.namedItem(name)) }
     
     disabled(): boolean;
-    disabled(disabled: boolean | $State<boolean>): this;
-    disabled(disabled?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
+    disabled(disabled: $StateArgument<boolean> | undefined): this;
+    disabled(disabled?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.disabled, () => $.set(this.dom, 'disabled', disabled))}
     
     multiple(): boolean;
-    multiple(multiple: boolean | $State<boolean>): this;
-    multiple(multiple?: boolean | $State<boolean>) { return $.fluent(this, arguments, () => this.dom.multiple, () => $.set(this.dom, 'multiple', multiple))}
+    multiple(multiple: $StateArgument<boolean> | undefined): this;
+    multiple(multiple?: $StateArgument<boolean> | undefined) { return $.fluent(this, arguments, () => this.dom.multiple, () => $.set(this.dom, 'multiple', multiple))}
 
     required(): boolean;
     required(required: boolean): this;
@@ -40,12 +40,12 @@ export class $Select extends $Container<HTMLSelectElement> {
     get selectedOptions() { return Array.from(this.dom.selectedOptions).map($option => $($option)) }
     
     name(): string;
-    name(name?: string | $State<string>): this;
-    name(name?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
+    name(name?: $StateArgument<string> | undefined): this;
+    name(name?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
     
     value(): string;
-    value(value?: string | $State<string>): this;
-    value(value?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
+    value(value?: $StateArgument<string> | undefined): this;
+    value(value?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
 
     get form() { return this.dom.form ? $(this.dom.form) : null }
     get labels() { return Array.from(this.dom.labels ?? []).map(label => $(label)) }
diff --git a/lib/$Text.ts b/lib/node/$Text.ts
similarity index 100%
rename from lib/$Text.ts
rename to lib/node/$Text.ts
diff --git a/lib/$Textarea.ts b/lib/node/$Textarea.ts
similarity index 87%
rename from lib/$Textarea.ts
rename to lib/node/$Textarea.ts
index 7378e61..a195dce 100644
--- a/lib/$Textarea.ts
+++ b/lib/node/$Textarea.ts
@@ -1,5 +1,5 @@
 import { $Container, $ContainerOptions } from "./$Container";
-import { $State } from "./$State";
+import { $StateArgument } from "../$State";
 
 export interface $TextareaOptions extends $ContainerOptions {}
 export class $Textarea extends $Container<HTMLTextAreaElement> {
@@ -12,16 +12,16 @@ export class $Textarea extends $Container<HTMLTextAreaElement> {
     cols(cols?: number) { return $.fluent(this, arguments, () => this.dom.cols, () => $.set(this.dom, 'cols', cols))}
     
     name(): string;
-    name(name?: string | $State<string>): this;
-    name(name?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
+    name(name?: $StateArgument<string> | undefined): this;
+    name(name?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.name, () => $.set(this.dom, 'name', name))}
     
     wrap(): string;
-    wrap(wrap?: string | $State<string>): this;
-    wrap(wrap?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.wrap, () => $.set(this.dom, 'wrap', wrap))}
+    wrap(wrap?: $StateArgument<string> | undefined): this;
+    wrap(wrap?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.wrap, () => $.set(this.dom, 'wrap', wrap))}
     
     value(): string;
-    value(value?: string | $State<string>): this;
-    value(value?: string | $State<string>) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
+    value(value?: $StateArgument<string> | undefined): this;
+    value(value?: $StateArgument<string> | undefined) { return $.fluent(this, arguments, () => this.dom.value, () => $.set(this.dom, 'value', value))}
     
     maxLength(): number;
     maxLength(maxLength: number): this;
diff --git a/lib/$View.ts b/lib/node/$View.ts
similarity index 87%
rename from lib/$View.ts
rename to lib/node/$View.ts
index c5e64ca..75ae1d6 100644
--- a/lib/$View.ts
+++ b/lib/node/$View.ts
@@ -1,5 +1,5 @@
 import { $Container, $ContainerOptions } from "./$Container";
-import { $EventManager } from "./$EventManager";
+import { $EventManager } from "../$EventManager";
 import { $Node } from "./$Node";
 
 export interface $ViewOptions extends $ContainerOptions {}
@@ -28,7 +28,7 @@ export class $View extends $Container {
 
     switchView(id: string) {
         const target_content = this.view_cache.get(id);
-        if (target_content === undefined) throw '$View.switch(): target content is undefined';
+        if (target_content === undefined) return this;
         this.content(target_content);
         this.content_id = id;
         this.event.fire('switch', id);
diff --git a/lib/Router/README.md b/lib/router/README.md
similarity index 100%
rename from lib/Router/README.md
rename to lib/router/README.md
diff --git a/lib/Router/Route.ts b/lib/router/Route.ts
similarity index 90%
rename from lib/Router/Route.ts
rename to lib/router/Route.ts
index fc82115..5a08e4d 100644
--- a/lib/Router/Route.ts
+++ b/lib/router/Route.ts
@@ -1,5 +1,6 @@
 import { $EventManager, $EventMethod } from "../$EventManager";
-import { $Node } from "../$Node";
+import { $Node } from "../node/$Node";
+import { $Util } from "../$Util";
 export class Route<Path extends string | PathResolverFn> {
     path: string | PathResolverFn;
     builder: (req: RouteRequest<Path>) => RouteContent;
@@ -32,7 +33,7 @@ export class RouteRecord {
         this.id = id;
     }
 }
-$.mixin(RouteRecord, $EventMethod)
+$Util.mixin(RouteRecord, $EventMethod)
 export interface RouteRecordEventMap {
     'open': [{path: string, record: RouteRecord}];
     'load': [{path: string, record: RouteRecord}];
diff --git a/lib/Router/Router.ts b/lib/router/Router.ts
similarity index 61%
rename from lib/Router/Router.ts
rename to lib/router/Router.ts
index 1412aae..043cf1e 100644
--- a/lib/Router/Router.ts
+++ b/lib/router/Router.ts
@@ -1,15 +1,18 @@
 import { $EventManager, $EventMethod } from "../$EventManager";
-import { $Text } from "../$Text";
-import { $View } from "../$View";
+import { $Text } from "../node/$Text";
+import { $Util } from "../$Util";
+import { $View } from "../node/$View";
 import { PathResolverFn, Route, RouteRecord } from "./Route";
 export interface Router extends $EventMethod<RouterEventMap> {};
 export class Router {
     routeMap = new Map<string | PathResolverFn, Route<any>>();
     recordMap = new Map<string, RouteRecord>();
     $view: $View;
-    index: number = 0;
-    events = new $EventManager<RouterEventMap>().register('pathchange', 'notfound', 'load');
+    static index: number = 0;
+    static events = new $EventManager<RouterGlobalEventMap>().register('pathchange', 'notfound', 'load');
+    events = new $EventManager<RouterEventMap>().register('notfound', 'load');
     basePath: string;
+    static currentPath: URL = new URL(location.href);
     constructor(basePath: string, view?: $View) {
         this.basePath = basePath;
         this.$view = view ?? new $View();
@@ -25,39 +28,54 @@ export class Router {
     /**Start listen to the path change */
     listen() {
         if (!history.state || 'index' in history.state === false) {
-            const routeData: RouteData = {index: this.index, data: {}}
+            const routeData: RouteData = {index: Router.index, data: {}}
             history.replaceState(routeData, '')
         } else {
-            this.index = history.state.index
+            Router.index = history.state.index
         }
         addEventListener('popstate', this.popstate)
         $.routers.add(this);
         this.resolvePath();
-        this.events.fire('pathchange', {path: location.href, navigation: 'Forward'});
+        Router.events.fire('pathchange', {prevURL: undefined, nextURL: Router.currentPath, navigation: 'Forward'});
         return this;
     }
 
-    /**Open path */
-    open(path: string | undefined) {
-        if (path === undefined) return;
-        if (path === location.pathname) return this;
+    /**Open URL */
+    static open(url: string | URL | undefined) {
+        if (url === undefined) return this;
+        url = new URL(url);
+        if (url.origin !== location.origin) return this;
+        if (url.href === location.href) return this;
+        const prevPath = Router.currentPath;
         this.index += 1;
         const routeData: RouteData = { index: this.index, data: {} };
-        history.pushState(routeData, '', path);
+        history.pushState(routeData, '', url);
+        Router.currentPath = new URL(location.href);
         $.routers.forEach(router => router.resolvePath())
-        this.events.fire('pathchange', {path, navigation: 'Forward'});
+        Router.events.fire('pathchange', {prevURL: prevPath, nextURL: Router.currentPath, navigation: 'Forward'});
         return this;
     }
 
     /**Back to previous page */
-    back() { history.back(); return this }
+    static back() { 
+        const prevPath = Router.currentPath;
+        history.back(); 
+        Router.currentPath = new URL(location.href);
+        Router.events.fire('pathchange', {prevURL: prevPath, nextURL: Router.currentPath, navigation: 'Back'});
+        return this 
+    }
 
-    replace(path: string | undefined) {
-        if (path === undefined) return;
-        if (path === location.pathname) return this;
-        history.replaceState({index: this.index}, '', path)
-        $.routers.forEach(router => router.resolvePath(path));
-        this.events.fire('pathchange', {path, navigation: 'Forward'});
+    static replace(url: string | URL | undefined) {
+        if (url === undefined) return this;
+        if (typeof url === 'string' && !url.startsWith(location.origin)) url = location.origin + url;
+        url = new URL(url);
+        if (url.origin !== location.origin) return this;
+        if (url.href === location.href) return this;
+        const prevPath = Router.currentPath;
+        history.replaceState({index: Router.index}, '', url)
+        Router.currentPath = new URL(location.href);
+        $.routers.forEach(router => router.resolvePath(url.pathname));
+        Router.events.fire('pathchange', {prevURL: prevPath, nextURL: Router.currentPath, navigation: 'Forward'});
         return this;
     }
 
@@ -69,12 +87,14 @@ export class Router {
 
     private popstate = (() => {
         // Forward
-        if (history.state.index > this.index) { }
+        if (history.state.index > Router.index) { }
         // Back
-        else if (history.state.index < this.index) {  }
-        this.index = history.state.index;
+        else if (history.state.index < Router.index) {  }
+        const prevPath = Router.currentPath;
+        Router.index = history.state.index;
         this.resolvePath();
-        this.events.fire('pathchange', {path: location.pathname, navigation: 'Forward'});
+        Router.currentPath = new URL(location.href);
+        Router.events.fire('pathchange', {prevURL: prevPath, nextURL: Router.currentPath, navigation: 'Forward'});
     }).bind(this)
 
     private resolvePath(path = location.pathname) {
@@ -151,14 +171,21 @@ export class Router {
             if (!preventDefaultState) this.$view.clear();
         }
     }
+
+    static on<K extends keyof RouterGlobalEventMap>(type: K, callback: (...args: RouterGlobalEventMap[K]) => any) { this.events.on(type, callback); return this }
+    static off<K extends keyof RouterGlobalEventMap>(type: K, callback: (...args: RouterGlobalEventMap[K]) => any) { this.events.off(type, callback); return this }
+    static once<K extends keyof RouterGlobalEventMap>(type: K, callback: (...args: RouterGlobalEventMap[K]) => any) { this.events.once(type, callback); return this }
 }
-$.mixin(Router, $EventMethod);
+$Util.mixin(Router, $EventMethod);
 interface RouterEventMap {
-    pathchange: [{path: string, navigation: 'Back' | 'Forward'}];
-    notfound: [{path: string, preventDefault: () => void}];
+    notfound: [{path: string, preventDefault: () => any}];
     load: [{path: string}];
 }
 
+interface RouterGlobalEventMap {
+    pathchange: [{prevURL?: URL, nextURL: URL, navigation: 'Back' | 'Forward'}];
+}
+
 type RouteData = {
     index: number;
     data: {[key: string]: any};
diff --git a/package.json b/package.json
index 66b5c61..0aaa293 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "fluentx",
     "description": "Fast, fluent, simple web builder",
-    "version": "0.0.6",
+    "version": "0.0.7",
     "type": "module",
     "module": "index.ts",
     "author": {