How to dynamically change the layer size using javascript

Source: Internet
Author: User

How to dynamically change the layer size using javascript

This example describes how to dynamically change the layer size in javascript. Share it with you for your reference. The specific implementation method is as follows:

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<Html xmlns = "http://www.w3.org/1999/xhtml">

<Head>

<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>

<Title> dynamically set the layer size </title>

<Style type = "text/css">

. DivMain

{

Width: 10px;

Height: 100px;

Border-style: solid;

Border-width: 1px;

Border-color: Green;

Display: none;

}

</Style>

<Script type = "text/javascript">

Var setIntervalID;

Function ZoomDiv (){

Var divMain = document. getElementById ("divMain ");

DivMain. style. width = "200px ";

DivMain. style. height = "200px ";

}

Function ShowDiv (){

SetIntervalID = setInterval ("inc ()", 100 );

}

Function inc (){

Var divMain = document. getElementById ("divMain2 ");

// Class cannot be set for div; otherwise, the time-space value obtained by divMain. style. width is used.

// You can only set style = "width: 10px; height: 100px" in the element"

Var oldWidth = divMain. style. width;

Var oldHeight = divMain. style. height;

OldWidth = parseInt (oldWidth );

OldHeight = parseInt (oldHeight );

OldWidth + = 1;

OldHeight + = 1;

If (oldWidth & gt; = 200 ){

// Clear the timer

ClearInterval (setIntervalID );

Return;

}

DivMain. style. width = oldWidth + "px ";

DivMain. style. height = oldHeight + "px ";

}

</Script>

</Head>

<Body>

<Input type = "button" value = "amplification layer" onclick = "ZoomDiv ()"/>

<Input type = "button" value = "dynamic amplification layer" onclick = "ShowDiv ()"/>

<Div id = "divMain" class = "divMain">

Case: Images flying with the mouse. Tip: When the mouse moves an event, onmousemove

The clientX and clientY attributes of window. event get the cursor position.

</Div>

<! -- The class cannot be set here; otherwise, the time and space of the value obtained using divMain. style. width -->

<Div id = "divMain2" style = "width: 10px; height: 100px; background-color: Red;">

Case: Images flying with the mouse. Tip: When the mouse moves an event, onmousemove

The clientX and clientY attributes of window. event get the cursor position.

</Div>

</Body>

</Html>

I hope this article will help you design javascript programs.

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