如何用js获取当前url的参数值

<script language = javascript>
function request(paras){
var url = location.href;
var paraString = url.substring(url.indexOf("?")+1,url.length).split("&");
var paraObj = {}
for (i=0; j=paraString[i]; i++){
paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length);
}
var returnValue = paraObj[paras.toLowerCase()];
if(typeof(returnValue)=="undefined"){
return "";
}else{
return returnValue;
}
}
//如你给出的地址可以这样
var classid = request("classid");
var id = request("id");
 
//然后你就可以对这些参数处理了
</script>

http://zhidao.baidu.com/question/171255491.html