getUrlParameters.js

function getURLParameters(url) {
    var result = {};
    var searchIndex = url.indexOf("?");

    if (searchIndex == -1) return result;
    var pageUrl = url.substring(searchIndex + 1);
    var urlVariables = pageUrl.split('&');
    for (var i = 0; i < urlVariables.length; i++) {
        var parameterName = urlVariables[i].split('=');
        result[parameterName[0]] = parameterName[1];
    }
    return result;
};

gistfile1.txt

var $url = "http://url.com?id=1&name=John&lastname=Doe;"
var urlParameters = getURLParameters($url);

console.log(urlParameters);