框架framset左侧隐藏
framset是个将网页分成多个部分的框架，或者说将多个页面显示在同一个页面上，常用在系统的主页面架构上，、
框架代码：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<frameset rows="50,*" cols="*" frameborder="no" border="0" framespacing="0">
<frame src="topframe.jsp" name="topFrame" frameborder="no" scrolling="No" noresize="noresize" id="topFrame" title="topFrame" /><!--头部-->
<frameset id="myFrame" cols="199,7,*" frameborder="no" border="0" framespacing="0">
<frame src="leftframe.jsp" name="leftFrame" frameborder="no" scrolling="No" noresize="noresize" id="leftFrame" title="leftFrame" />
<frame src="hideframe.html" name="midFrame" frameborder="no" scrolling="No" noresize="noresize" id="midFrame" title="midFrame" />
<frameset rows="59,*" cols="*" frameborder="no" border="0" framespacing="0">
<frame src="mainframe.jsp" name="mainFrame" frameborder="no" scrolling="No" noresize="noresize" id="mainFrame" title="mainFrame" />
<frame src="manframe.jsp" name="manFrame" frameborder="no" id="manFrame" title="manFrame" />
</frameset>
</frameset>
</frameset>
<noframes><body>
</body>
</noframes>
</html>
PS：这里为了将leftFrame隐藏，在此设置了一个midFrame，调用的是hideframe.html
hideframe.html的代码是：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<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">
var flag = true;
function Submit_onclick(){
if(flag) {
// alert(3);
parent.myFrame.cols="0,7,*";
document.getElementById("ImgArrow").src="../images/to_right.gif";
document.getElementById("ImgArrow").alt="打开左侧导航栏";
flag=false;
} else {
parent.myFrame.cols="199,7,*";
document.getElementById("ImgArrow").src="../images/to_left.gif";
document.getElementById("ImgArrow").alt="隐藏左侧导航栏";
flag=true;
}
}
</script>
<body>
<div id="switchpic"><a href="javascript:Submit_onclick()"><img src="../images/to_left.gif" alt="隐藏左侧导航栏" id="ImgArrow" /></a></div>
</body>
</html>
////注意：frameset的name属性Google浏览器不识别，若在frameset定义的时候写的是name="myFrameset",上面代码中parent.myFrame.cols无法执行，需写成id="myFrameset"
很多代码大同小异，当做笔记，以备学习