function ddown(n)
	{
		i=1;
		while (document.getElementById("divShort_"+i) )
		{
			document.getElementById("divShort_"+i).style.display='block';
			document.getElementById("divFull_"+i).style.display='none';
			dhid1e(i);
			i++;	
		}
		
		document.getElementById('divShort_'+n).style.display='none';
		document.getElementById('divFull_'+n).style.display='block';
		document.getElementById("divclose"+n).style.display='block';
		document.getElementById("divopen"+n).style.display='none';
	}	
	
	function disableCloseButtons(){

		var i = 1;
		while (document.getElementById("img"+i))
		{
			document.getElementById("img"+i).style.display='none';
			i++;
		}
	}
	function dhid1e(n)
	{
		
		document.getElementById("divShort_"+n).style.display='block';
		document.getElementById("divFull_"+n).style.display='none';
		document.getElementById("divclose"+n).style.display='none';
		document.getElementById("divopen"+n).style.display='block';
	}

	//function showVid(obj)
	function showVid(obj,n)
	{
		for(i=1;i<=n;i++)
		{
			if(document.getElementById("a"+i))
			{
				document.getElementById("a"+[i]).style.display='none'
			}
		}
		document.getElementById(obj).style.display='block'
	}