利用表格自动扩充表格区域代码

关键js代码：

/*扩充左边树区域宽度 start*/

function MouseDownToResize(obj){

obj.mouseDownX=event.clientX;

obj.pareneTdW=obj.parentElement.parentElement.offsetWidth;

obj.setCapture();

}

function MouseMoveToResize(obj){

if(!obj.mouseDownX) return false;

var newWidth=obj.pareneTdW*1+event.clientX*1-obj.mouseDownX;

if(newWidth>0&&newWidth>240)

{

obj.parentElement.parentElement.style.width = newWidth;

configcheck_div_leftmenu01.style.width=newWidth-10;

}

}

function MouseUpToResize(obj){

obj.releaseCapture();

obj.mouseDownX=0;

}

/*扩充左边树区域宽度 end*/

<style>

.resizeDivClass

{

width:3px;

cursor:e-resize;

height:700px;

float: left;

}

</style>

<table>

<tr>

<td>

<div id="configcheck_div_leftmenu02" class="resizeDivClass" onmousedown="MouseDownToResize(this);" onmousemove="MouseMoveToResize(this);" onmouseup="MouseUpToResize(this);"></div>

</td>

<td>

</td>

</tr>

</table>