Javascript – Get Querystring from Url

// Read a page's GET URL variables and return them as an associative array.
function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}

This code will return:

{
    "me"    : "myValue",
    "name2" : "SomeOtherValue"
}
http://www.example.com/?me=myValue&name2=SomeOtherValue
var me = getUrlVars()["me"];
var name2 = getUrlVars()["name2"];

Source