var isFullScreen = false;
		
		function toggleFullScreen() 
		{
			var el = document.getElementById('slideshow');
			var pg = document.getElementById('main_container');
			
			if(isFullScreen == true) {
				isFullScreen = false;
				el.className = 'slideshow_fixed';
				pg.style.height = '100%';
				pg.style.overflow = '';
			} else {
				isFullScreen = true;
				el.className = 'slideshow_full';
				pg.style.height = '1px';
				pg.style.overflow = 'hidden';
			}
		}
		
		function changeDepth(d) 
		{
			el = document.getElementById('slideshow');
			el.style.zIndex = d;
		}