JS获取URL中的Id

获取 URL中的Id参数：

function getId(){
//获取URL中的ID
var url = location.href;
var theRequest = new Object();
var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");
if (url.indexOf("?") != -1) {
for (var i = 0; i < paraString.length; i++) {
theRequest[paraString[i].split("=")[0]] = unescape(paraString[i].split("=")[1]);
}
}

var Id = theRequest["id"];
}