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通过更改按钮的显示样式，来实现按钮动态滑动
<!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>
</head>
<style>
.search{ background:#008800; color:#fff; border:none; height:26px; line-height:20px; width:63x;}
.searchhover{background:#000099; color:#fff; border:none; height:26px; line-height:20px; width:63px; }
</style>
</head>
<body onload="js()">
<input type="button" id="btn" class="search" name="btn" value="登 录"/>
<input type="button" id="btn2" class="search" name="btn" value="注 销"/>
<script type="text/javascript" >
function js()
{
// 使ie6 button支持hover属性 obj是要支持hover的实体 hover是btn:hover的样式，init是初始样式
obj="btn";
alert(navigator.appName);
if(navigator.appName == "Microsoft Internet Explorer" && parseFloat(navigator.appVersion) == 4){// 判断ie6
var o = document.getElementsByName(obj);
for(var i=0;i<o.length;i++){
if(o[i].type == "button"){
//o[i].className = "search";
o[i].onmouseover = function(){ this.className = "searchhover"}
o[i].onmouseout = function(){ this.className = "search"};
}
}
}
}
</script>
</body>
</html>