String.prototype.changeQuery = function(name,value)
{
var reg = new RegExp("(^|)"+ name +"=([^&]*)(|$)");
var tmp = name + "=" + value;
if(this.match(reg) != null)
{
return this.replace(eval(reg),tmp);
}
else
{
if(this.match("[\?]"))
{
return this + "&" + tmp;
}
else
{
return this + "?" + tmp;
}
}
}
var href = 'http://dlib.apabi.com/?Token=44AB&cult=CN&orgid=pku';
alert("old url is -- "+href);
href = href.changeQuery("cult","US");
alert("new url is -- "+href);
<html>
<head>
<title>changePage</title>
</head>
<body>
<table id="pic" cellpadding="0" cellspacing="0" border="1" width="200" height="100" bordercolor="red">
<tr>
<td>picture chanage!</td>
</tr>
</table>
< ......
<title>JavaScript切换图片</title>
<script>
function showDaTu(src){
document.getElementById("defaultImg").src=src;
}
</script>
<img src="/jscss/demoimg/wall1.jpg" id="defaultImg">
<br><br><br>
<img src='/jscss/demoimg/wall_s1.jpg' onmouseover ......
