function toggle(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}


		function slideShow(speed) {
		 
		 
			//append a LI item to the UL list for displaying caption
			$('ul.slideshow').append('<li id="slideshow-caption" class="caption"><div class="slideshow-caption-container"><h3></h3><p></p></div></li>');
		 
			//Set the opacity of all images to 0
			$('ul.slideshow li').css({opacity: 0.0});
			 
			//Get the first image and display it (set it to full opacity)
			$('ul.slideshow li:first').css({opacity: 1.0});
			 
			//Get the caption of the first image from REL attribute and display it
			$('#slideshow-caption h3').html($('ul.slideshow a:first').find('img').attr('title'));
			$('#slideshow-caption p').html($('ul.slideshow a:first').find('img').attr('alt'));
				 
			//Display the caption
			$('#slideshow-caption').css({opacity: 0.7, bottom:0});
			 
			//Call the gallery function to run the slideshow   
			var timer = setInterval('gallery()',speed);
			 
			//pause the slideshow on mouse over
			$('ul.slideshow').hover(
				function () {
					clearInterval(timer);  
				}, 
				function () {
					timer = setInterval('gallery()',speed);        
				}
			);
			 
		}
		 
		function gallery() {
		 
		 
			//if no IMGs have the show class, grab the first image
			var current = ($('ul.slideshow li.show')?  $('ul.slideshow li.show') : $('#ul.slideshow li:first'));
		 
			//Get next image, if it reached the end of the slideshow, rotate it back to the first image
			var next = ((current.next().length) ? ((current.next().attr('id') == 'slideshow-caption')? $('ul.slideshow li:first') :current.next()) : $('ul.slideshow li:first'));
				 
			//Get next image caption
			var title = next.find('img').attr('title');
			var desc = next.find('img').attr('alt');   
				 
			//Set the fade in effect for the next image, show class has higher z-index
			next.css({opacity: 0.0}).addClass('show').animate({opacity: 1.0}, 1000);
			 
			//Hide the caption first, and then set and display the caption
			$('#slideshow-caption').slideToggle(300, function () {
				$('#slideshow-caption h3').html(title);
				$('#slideshow-caption p').html(desc);
				$('#slideshow-caption').slideToggle(500);
			});
		 
			//Hide the current image
			current.animate({opacity: 0.0}, 1000).removeClass('show');
		 
		}