$.fn.extend({

    showHide: function(cond) {
        if (cond)
            this.show();
        else
            this.hide();
    },

    checked: function(value) {
        if (value != null)
            this.attr('checked', value);
        return this.attr('checked');
    },

    selected: function(value) {
        if (value != null)
            this.attr('selected', value);
        return this.attr('selected');
    },

    setClass: function(className) {
        this.attr('className', className);
    },

    addRemoveClass: function(cond, className) {
        if (cond)
            this.addClass(className);
        else
            this.removeClass(className);
    }

});

$.extend({

    getExt: function(url, data, callbackSuccess, callbackError, type) {
        if ($.isFunction(data)) {
            callbackError = callbackSuccess;
            callbackSuccess = data;
            data = null;
        }

        return $.ajax({
            type: "GET",
            url: url,
            data: data,
            success: callbackSuccess,
            error: function() {
                if ($.isFunction(callbackError))
                    callbackError();
            },
            dataType: type
        });
    },

    getJSONExt: function(url, data, callbackSuccess, callbackError) {
        return $.getExt(url, data, callbackSuccess, callbackError, "json");
    },

    postExt: function(url, data, callbackSuccess, callbackError, type) {
        if ($.isFunction(data)) {
            callbackError = callbackSuccess;
            callbackSuccess = data;
            data = null;
        }

        return $.ajax({
            type: "POST",
            url: url,
            data: data,
            success: callbackSuccess,
            error: function() {
                if ($.isFunction(callbackError))
                    callbackError();
            },
            dataType: type
        });
    },

    postJSONExt: function(url, data, callbackSuccess, callbackError) {
        return $.postExt(url, data, callbackSuccess, callbackError, "json");
    }

});

/**
 * Cookie plugin
 *
 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */

jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString();
        }
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else {
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};