		//toggle on or off the passed in element
			function toggledisplay(nr)
			{	
				if (document.layers)
				{
					current = (document.layers[nr].display == 'none') ? 'block' : 'none';
					document.layers[nr].display = current;
				}
				else if (document.getElementById)
				{
					vista = (document.getElementById(nr).style.display == 'none') ? 'block' : 'none';
					document.getElementById(nr).style.display = vista;
				}
				else if (document.all)
				{
					current = (document.all[nr].style.display == 'none') ? 'block' : 'none';
					document.all[nr].style.display = current;
				}
			}

		//set the passed in elements' display attribute to the passed in display value
			function setdisplay(nr,display)
			{	
				if (document.layers)
				{
					document.layers[nr].display = display;
				}
				else if (document.getElementById)
				{
					document.getElementById(nr).style.display = display;
				}
				else if (document.all)
				{
					document.all[nr].style.display = display;
				}
			}

		//open a javascript popup window
			function openpopup(href)
			{
				window.open(href,'mywindow','width=760,height=500,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=yes,resizable=no');
			}
			
		//preload images
			//	eg <body onload="preloadImages('gfx/image1.gif','gfx/image2.gif')" >
			function preloadImages() { //v3.0
			  var d=document; if(d.images){ if(!d.p) d.p=new Array();
				var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
				if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
			}
			
		//swap image script
			//eg onmouseout="swapImgRestore()" onmouseover="swapImage('imageID','','gfx/image1-ova.gif',1)">
			function swapImgRestore() { //v3.0
			  var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
			}
			
			function findObj(n, d) { //v4.01
			  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
				d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
			  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
			  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);
			  if(!x && d.getElementById) x=d.getElementById(n); return x;
			}
			
			function swapImage() { //v3.0
			  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
			   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
			}
			
			
			
			/* stuff for youtube video showing*/
	function showVideo(embedcode, videoname)
	{		
		//alert('in show video');		
		document.getElementById("embed").innerHTML="<a href=\"#\" onclick=\"closeVideo()\">close</a><h1>"+videoname+"</h1>";		
		document.getElementById("embed").innerHTML+=embedcode;
		document.getElementById("youtube-embed").style.display='block';
		
	}
	
	function closeVideo()
	{
		document.getElementById("embed").innerHTML="";		
		document.getElementById("youtube-embed").style.display='none';	
	}
