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2-3延时框.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
div{float:left; margin:10px;}
#div1{width:50px; height:50px; background:red;}
#div2{width:300px; height:180px; background:#CCC; display:none;}
</style>
<script>
window.onload=function(){
	var oDiv1=document.getElementById('div1');
	var oDiv2=document.getElementById('div2');
	var timer=null;

	 oDiv1.onmouseover=oDiv2.onmouseover=function (){
		 clearTimeout(timer);
		 oDiv2.style.display='block';
	 }
	 oDiv1.onmouseout=oDiv2.onmouseout=function (){
		 timer=setTimeout(function (){
			 oDiv2.style.display='none';
		 },500);
	 }
	/* oDiv2.onmouseover=function(){
		 clearTimeout(timer);
	 }
	 oDiv2.onmouseout=function(){
		 timer=setTimeout(function (){
		 oDiv2.style.display='none';
		 },500);
	 }*/
};
</script>
</head>

<body>
<div id="div1"></div>
<div id="div2"></div>
</body>
</html>