$().ready(function(){
	
	// SuperFish navigation menu options
	var sfOptions = {
		animation : { opacity:"show", height:"show" }
	};
	
	// (optional: If SuperFish menus to appear on top of active Flash/Applet
	//  content and the browser platform is Linux, then use iframe workaround)
	
	/* psuedo code;
	 *     For each item (<li>) with a submenu (<ul>) [onInit()]
	 *       1. set the item's position to relativeposition to relative
	 *       2. add an invisible, absolutely positioned iframe as the first child of item
	 *    
	 *     On each submenu display [onShow]
	 *       1. Set dimension of upstream iframe
	 *       2. Toggle iframe visibility
	 *       
	 *     On each submenu hide
	 *       1. Toggle iframe visibility
	 */
 
	if(/Linux/.test(navigator.platform)) {
		sfOptions = $.extend(sfOptions,{
			onInit: function(){
				$('li:has(ul)',this).each(function(){
					$(this).css('position','relative')
						.prepend('<iframe src="javascript:false;document.write(\'\');" style="position:absolute;width:100%;top:0;left:0;z-index:-1;display:none;');
				});
			},
			onHide: function(){
				$(this).siblings('iframe').css('display','none');
			},
			onShow: function(){
				$(this).siblings('iframe')
					.css({
						height: $(this).parent().height() + this.clientHeight + 'px',
						display: 'block'
					});
			}
		});
	}
	
	$('#navigation ul.nav').superfish(sfOptions);
	
});