/*!
 * jQuery QueryString v0.9.0 (Beta version)
 *
 * http://www.darlesson.com/
 *
 * Copyright 2010, Darlesson Oliveira
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * @requires jQuery v1.3.2 or above
 *
 * Reporting bugs, comments or suggestions: http://darlesson.com/contact/
 * Documentation and other jQuery plug-ins: http://darlesson.com/jquery/
 * Donations are welcome: http://darlesson.com/donate/
 */
(function($){
    $.QueryString = function(queryString, options){
        var defaults = {
            href: window.location.href,
            index: null,
            isCaseSensitive: true
        }, settings = $.extend({}, defaults, options);
        var isCaseSensitive = settings.isCaseSensitive, queryString = (queryString == null) ? null : (isCaseSensitive) ? queryString.toString() : queryString.toString().toLowerCase(), href = settings.href.toString(), href = (href.lastIndexOf("?") > -1) ? href.substring(href.lastIndexOf("?") + 1, href.length) : null;
        this.size = 0;
        if (href && !queryString) {
            var arr = href.split("&"), arrValue = "", thisObject = "";
            this.size = arr.length;
            for (var x = 0; x < arr.length; x++) {
                var query = (isCaseSensitive) ? arr[x].split("=")[0] : arr[x].split("=")[0].toLowerCase(), value = arr[x].split("=")[1], insertComma = (arrValue == "") ? "[{" : ", ";
                arrValue += (insertComma + "" + query + " : '" + value + "'");
                thisObject += ("this." + query + " = '" + value + "';");
            }
            arrValue = eval(arrValue + "}]")[0];
            eval(thisObject);
            return this;
        }
        else 
            if (href && queryString && href.indexOf(queryString + "=") > -1) {
                var arr = href.split("&"), firstItemValue = null, count = 0, arrValue = new Array();
                for (var x = 0; x < arr.length; x++) {
                    var query = (isCaseSensitive) ? arr[x].split("=")[0] : arr[x].split("=")[0].toLowerCase(), value = arr[x].split("=")[1];
                    if (isNaN(settings.index) || settings.index > arr.length) {
                        return null;
                    }
                    else 
                        if (query == queryString && settings.index === x) {
                            return value;
                        }
                        else 
                            if (query == queryString) {
                                if (!firstItemValue) {
                                    firstItemValue = value;
                                };
                                arrValue[count] = value;
                                count += 1;
                            };
                                    };
                if (arrValue.length > 1) {
                    return arrValue;
                }
                else {
                    return firstItemValue;
                };
                            }
            else 
                if (href && queryString && href.indexOf(queryString + "=") == -1) {
                    return null;
                };
        return null;
    };
})(jQuery);