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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="css/common.css" type="text/css" />
<title>显示/隐藏左侧导航栏</title>
</head>
<script language="JavaScript">
function Submit_onclick()
{
alert(window.parent.document.getElementById("myFrame").cols);
if(window.parent.document.getElementById("myFrame").cols == "199,7,*") {
window.parent.document.getElementById("myFrame").cols ="0,7,*";
document.getElementById("ImgArrow").src="images/switch_right.gif";
document.getElementById("ImgArrow").alt="打开左侧导航栏";
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window.parent.document.getElementById("myFrame").cols="199,7,*";
document.getElementById("ImgArrow").src="images/switch_left.gif";
document.getElementById("ImgArrow").alt="隐藏左侧导航栏";
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{
if(window.parent.location.href.indexOf("MainUrl")>0)
{
window.top.midFrame.document.getElementById("ImgArrow").src="images/switch_right.gif";
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<body >
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</body>
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