url中search字符串解析为json对象

var url = "http://www.taobao.com/index.php?key0=0&key1=1";
var obj = parseQueryString(url);
function parseQueryString(argu){
var str = argu.split('?')[1];
var result = {};
var temp = str.split('&');

for(var i=0; i<temp.length; i++)
{
var temp2 = temp[i].split('=');
result[temp2[0]] = temp2[1];

}
return result;
}