Useful for ajax navigation

parsehashbang.js

/**
 * Parse hash bang parameters from a URL as key value object.
 *
 * #x&y=3 -> { x:null, y:3 }
 * 
 * @param aURL URL to parse or null if window.location is used
 * @return Object of key -> value mappings.
 */
function parseHashBang(url) {
    url = url || window.location.href;
    var collection = [];
    var queryString = url.slice(url.indexOf("#!") + 2);

    var pairs = queryString.split("&");
    pairs.forEach(function (element) {
        var pair = element.split("=");
        var key = pair[0];
        var val = pair[1];

        collection[key] = val;
    });

    return collection;
}