function ChangeBack(pix,idd)
		{
			document.getElementById(idd).background=pix;  
		}

function toggle(idd,xclass) {
		var elem = (document.all) ? document.all(idd):
			document.getElementById(idd)
				//alert(document.getElementById(idd).background);
					elem.className=xclass;;
					
		}

function disappear (xlayer)
	{
		if  (document.all)
		{
			setTimeout(this,2);
			document.all[xlayer].style.visibility="hidden";
		}
		else if (document.layers)
		{
				setTimeout(this,2);
				document.layers[xlayer].visibility="hide";
		}
		else
		{	setTimeout(this,2);
			document.getElementById(xlayer).style.visibility="hidden";
		}
	}

function appear(xlayer)
	{
		if  (document.all)
		{
			document.all[xlayer].style.visibility="visible";
		}
		else if (document.layers)
		{
				document.layers[xlayer].visibility="show";
		}
		else
		{
			document.getElementById(xlayer).style.visibility="visible";
		}
	}