js 截取url中的多个参数

//截取Url里面的参数
function GetRequest() {
var url = location.search; //获取url中"?"符后的字串
var theRequest = new Object();
if (url.indexOf("?") != -1) {
var str = url.substr(1);
//alert(str);
strs = str.split("&");
for (var i = 0; i < strs.length; i++) {
theRequest[strs[i].split("=")[0]] = decodeURI(strs[i].split("=")[1]);//获取中文参数转码<span style="font-family: Arial, Helvetica, sans-serif;">decodeURI</span>，（unescape只针对数字，中文乱码)
}
}
return theRequest;
}

//
//
$(function(){
//通过url取数

var request = new Object();
request = GetRequest();

var a = request['a'] ;   a=123
var b = request['b'] ;   b=345
})