(function($) {
	$.fn.popUpMenu = function(options) {
		var opts = $.extend({}, $.fn.popUpMenu.defaults, options);
		opts.direction = opts.direction.replace(/^\w/, function($0) {
			return $0.toUpperCase();
		});

		return this.each(function() {
			var menu = $(this);
			menu.append(opts.append);
			menu.prepend(opts.prepend);
			
			menu.find(opts.subMenuItem).mouseenter(function() {
				var sib = $(this).siblings();
				sib.find(opts.subMenu).hide();
				sib.find('a').removeClass(opts.overClass);	
			});
			
			menu.find(opts.subMenu).parent().each(function() {
				var o = $(this),
					s = o.children(opts.subMenu),
					k = false,
					l = s.parents(opts.subMenu).length,
					a = o.find('a:first');
				
				a.addClass(opts.hasSubMenu);
				
				o.hover(
					function() {						
						var p = $.fn.popUpMenu['getPosition' + opts.direction](o, l, s);
						k = true;
						s.css(p)[opts.showEffect](opts.timeEffect);
						a.addClass(opts.overClass);
					},
					function() {
						k = false;
						
						window.setTimeout(function() {
							if (!k) {
								s[opts.hideEffect](opts.timeEffect);
								a.removeClass(opts.overClass);
							}
						}, opts.sleep);
					}
				);
			});
		});
	}
		
	$.fn.popUpMenu.defaults = {
		subMenu: 'ul',
		subMenuItem: 'li',
		append: '',
		prepend: '',
		overClass: 'over',
		hasSubMenu: 'has',
		showEffect: 'show',
		hideEffect: 'hide',
		timeEffect: 0,
		direction: 'right',
		sleep: 500
	};
	
	$.fn.popUpMenu.getPositionRight = function(o) {
		var p = o.position();
		return {
			left: p.left + o.width(),
			top: p.top
		};
	};
	
	$.fn.popUpMenu.getPositionLeft = function(o) {
		var p = o.position();
		return {
			left: p.left - o.width(),
			top: p.top
		};
	};
	
	$.fn.popUpMenu.getPositionBottom = function(o, l) {
		var p = o.position();
		if (l == 1) {
			return {
				left: p.left,
				top: p.top + o.height()
			};
		} else {
			return {
				left: p.left + o.width(),
				top: p.top
			}
		}
	};
	
	$.fn.popUpMenu.getPositionTop = function(o, l, s) {
		var p = o.position();
		if (l == 1) {
			return {
				left: p.left,
				top: p.top - s.height()
			};
		} else {
			return {
				left: p.left + o.width(),
				top: p.top - s.height() + o.height()
			};
		}
	};
})(jQuery);

$(function() {	
	$('#lmenu').popUpMenu({
		showEffect: 'fadeIn',
		hideEffect: 'fadeOut',
		timeEffect: 500
	});
	
	$('#rmenu').popUpMenu({
		direction: 'left',
		showEffect: 'slideDown',
		hideEffect: 'slideUp',
		timeEffect: 500
	});
	
	$('#tmenu').popUpMenu({
		direction: 'bottom',
		timeEffect: 500
	});
	
	$('#bmenu').popUpMenu({
		direction: 'top'
	});
});