js获取url地址栏问号后携带的参数

function GetRequest() {
var url = decodeURI(location.search); //获取url中"?"符后的字串
var theRequest = new Object();
if (url.indexOf("?") != -1) {
var str = url.substr(1);
strs = str.split("&");
for ( var i = 0; i < strs.length; i++) {
theRequest[strs[i].split("=")[0]] = unescape(strs[i].split("=")[1]);
}
}
return theRequest;
}
var Request=undefined;
Request=GetRequest();
var id=Request["id"];