Parse a URL string in it's various parts

url-parse.js

function parseUrl(url) {
    var _url = (url || window.location.href).match(/^(?:(https?:)\/\/)?([^\?\#\/\:]+)(?::(\d+))?([^\?\#]+)?(\?[^#]+)?(#[^\s]+)?$/),
        params = _url[5] || false;

    if (!_url.length) {
        // couldn't parse url string
        return false;
    }

    if (params && !/^$/.test(params)) {
        var pairs = params.replace(/^\?/,'').split('&');
        params = {};
        // console.log("pairs=%o", pairs);
        for (var i=0, l=pairs.length; i<l; i++) {
            var keyval = pairs[i].split('=');
            params[keyval[0]] = keyval[1];
        }
    }
    return {
        source: url,
        protocol: _url[1],
        host: _url[2],
        port: _url[3],
        path: _url[4],
        query: _url[5],
        hash: _url[6],
        params: params
    };
}