This method gets the url parameters and constructs an object with them

get-url-params.js

/**
 * This method gets the url parameters and constructs an object with them.
 * <code>
 * localhost/app?param=1&param2=2&params3=text
 *
 * getUrlParams() returns {param: 1, param2:2, params3='text'}
 * </code>
 * @author Maximiliano Báez
 */
function getUrlParams() {
    var urlString = document.location.search.replace("?", "");
    // remove the final #
    if (urlString[urlString.length - 1] == "#") {
        urlString = urlString.substr(0, urlString.length - 1);
    }
    var params = urlString.split("&");
    var urlParams = {};

    //ie trim support
    if (typeof String.prototype.trim !== 'function') {
        String.prototype.trim = function () {
            return this.replace(/^\s+|\s+$/g, '');
        };
    }
    // parse all url parmeters
    for (var i = 0; i < params.length; i++) {
        var tokens = params[i].split("=");
        urlParams[tokens[0].trim()] = tokens[1];
    }
    return urlParams;
}