function closeYouTubeClip()
	{
		if(document.getElementById('YouTubePlayer')) document.getElementById('YouTubePlayer').style.display = "none";
		if(document.getElementById('YouTubePlayer')) document.getElementById('YouTubePlayer').innerHTML = '';
	}	
	function showYouTubeClip(youtubeId)
	{
		Opera = navigator.userAgent.indexOf("Opera") > -1;
		IE = navigator.userAgent.indexOf("MSIE") > -1;
			
		// scroll window to top
		window.scroll(10000, 0);
		
		// create player div
		if(!document.getElementById('YouTubePlayer'))
		{
			// create the player DIV
			var divElement = document.createElement("div");
			divElement.setAttribute('id', 'YouTubePlayer');
			
			// create parent object (that will contain the "read box"
			var divParent = document.getElementsByTagName("body");
			divParent = divParent[0];
			
			// append "YouTubePlayer" box into body
			divParent.appendChild(divElement);
			
			// set style attribute on this new div
			document.getElementById('YouTubePlayer').style.position = "absolute";
			document.getElementById('YouTubePlayer').style.left = "45px";
			document.getElementById('YouTubePlayer').style.top = "200px";
			document.getElementById('YouTubePlayer').style.width = IE ? "470px" : "470px";
			document.getElementById('YouTubePlayer').style.height = IE ? "400px" : "400px";
			document.getElementById('YouTubePlayer').style.border = "1px solid black";
			document.getElementById('YouTubePlayer').style.backgroundColor = "black";
			document.getElementById('YouTubePlayer').style.padding = "20px 0 0 0";
			document.getElementById('YouTubePlayer').style.overflow = "hidden";
			document.getElementById('YouTubePlayer').style.zIndex = "101";
		}
		
		// display player
		document.getElementById('YouTubePlayer').style.display = "block";
		
		// load content of player div
		if(document.getElementById('YouTubePlayer')) document.getElementById('YouTubePlayer').innerHTML = '<iframe src="youtube/index.php?youtube_id='+youtubeId+'" style="width: '+(IE ? "470px" : "470px")+'; height: '+(IE ? "400px" : "400px")+';" frameborder="0" allowtransparency="true"></iframe>';
	}