/*!
* jquery.ui.potato.menu
* 
* Copyright (c) 2009-2010 makoto_kw, http://www.makotokw.com
* Licensed under the MIT license.
* 
* @author makoto_kw
* @version 1.1
*/
(function ($) {
    var defaults = {
        vertical: false,
        menuItemSelector: 'li',
        menuGroupSelector: 'ul',
        rootClass: 'potato-menu',
        menuItemClass: 'potato-menu-item',
        menuGroupClass: 'potato-menu-group',
        verticalClass: 'potato-menu-vertical',
        holizontalClass: 'potato-menu-holizontal',
        hasVerticalClass: 'potato-menu-has-vertical',
        hasHolizontalClass: 'potato-menu-has-holizontal',
        hoverClass: 'potato-menu-hover',
        showDuration: 350,
        hideDuration: 100
    }
    function menu() {
        var option = (typeof (arguments[0]) != 'string') ? $.extend(defaults, arguments[0]) : $.extend(defaults, {});
        var $menu = $(this).addClass(option.rootClass + ' ' + option.menuGroupClass).addClass((option.vertical) ? option.verticalClass : option.holizontalClass);
        var $menuItems = $menu.find(option.menuItemSelector).addClass(option.menuItemClass);
        var $menuGroups = $menu.find(option.menuGroupSelector).addClass(option.menuGroupClass);

        $menuItems.hover(
			function (e) {
			    $(this).addClass(option.hoverClass);
			},
			function (e) {
			    $(this).removeClass(option.hoverClass);
			}
		);
        $menuGroups.parent().each(function (index) {
            var $parentMenuItem = $(this); // menu item that has menu group
            var displayDirection = ($parentMenuItem.parent().hasClass(option.holizontalClass)) ? 'bottom' : 'right';
            $parentMenuItem.addClass((displayDirection == 'bottom') ? option.hasVerticalClass : option.hasHolizontalClass);
            var $menuGroup = $parentMenuItem.find(option.menuGroupSelector + ':first').addClass(option.verticalClass);
            $parentMenuItem.hover(
				function (e) {
				    var offset = (displayDirection == 'bottom') ? { left: '0', top: ''} : { left: $(this).width() + 'px', top: '0' };
				    $menuGroup.css({ left: offset.left, top: offset.top }).fadeIn(option.showDuration);
				    $("#MainContent iframe").hide();
				},
				function (e) {
				    $menuGroup.fadeOut(option.hideDuration);
				    $("#MainContent iframe").show();
				}
			);
        });
        $menu.find('a[href^="#"]').click(function () {
            $menuGroups.fadeOut(option.hideDuration);
            return ($(this).attr('href') != '#');
        })
        return this;
    }
    $.fn.extend({
        ptMenu: menu
    });
})(jQuery);