(function($) {
	$.fn.rb_menu = function(options) {
	  var $self = this;
	
	  $self.options = {
		// transitions: http://gsgd.co.uk/sandbox/jquery/easing/
		transition:    'easeOutBounce',
		// trigger events: mouseover, mousedown, mouseup, click, dblclick
		triggerEvent:  'mouseover',
		// number of ms to delay before hiding menu (on page load)
		loadHideDelay : 1000,
		// number of ms to delay before hiding menu (on mouseout)
		blurHideDelay:  500,
		// number of ms for transition effect
		effectDuration: 1000,
		// hide the menu when the page loads
		hideOnLoad: true,
		// automatically hide menu when mouse leaves area
		autoHide: true
	  }
	
	  // make sure to check if options are given!
	  if(options) {
		$.extend($self.options, options);
	  }
	
	  return this.each(function() {
		var $menu = $(this);
		var $menuItems = $menu.find('.items');
		var $toggle = $menu.find('.toggle');
	
		// add 'hover' class to trigger for css styling
		$toggle.hover(
		  function() {
			  $toggle.addClass('toggle-hover');
		  },
		  function() {
			  $toggle.removeClass('toggle-hover');
		  }
		);
	
		if($self.options.hideOnLoad) {
			if($self.options.loadHideDelay <= 0) {
				$menuItems.hide();
				$menu.closed = true;
				$menu.unbind();
			} else {
				// let's hide the menu when the page is loading
				// after {loadHideDelay} milliseconds
				setTimeout( function() {
					$menu.hideMenu();
				}, $self.options.loadHideDelay);
			}
		}
	
		// bind event defined by {triggerEvent} to the trigger
		// to open and close the menu
		$toggle.bind($self.options.triggerEvent, function() {
		  // if the trigger event is click or dblclick, we want
		  // to close the menu if its open
		  if(($self.options.triggerEvent == 'click' || $self.options.triggerEvent == 'dblclick') && !$menu.closed) {
			$menu.hideMenu();
		  } else {
			$menu.showMenu();
		  }
		});
	
		$menu.hideMenu = function() {
		  if($menuItems.css('display') == 'block' && !$menu.closed) {
			$menuItems.hide(
			  'slide',
			  {
				direction: 'up',
				easing: $self.options.transition
			  },
			  $self.options.effectDuration,
			  function() {
				$menu.closed = true;
				$menu.unbind();
			  }
			);
		  }
		}
	
		$menu.showMenu = function() {
		  if($menuItems.css('display') == 'none' && $menu.closed) {
			$menuItems.show(
			  'slide',
			  {
				direction: 'up',
				easing: $self.options.transition
			  },
			  $self.options.effectDuration,
			  function() {
				$menu.closed = false;
				if($self.options.autoHide) {
				  $menu.hover(
					function(e) {
					  clearTimeout($menu.timeout);
					}, 
					function(e) {
					  $menu.timeout = setTimeout(function() {
						  $menu.hideMenu();
					  }, $self.options.blurHideDelay);
					}
				  );
				}
			  }
			);
		  }
		}
	  });
	};
})(jQuery);