var origx=0;
var origy=0;
var cs=0;
var zoomed=false;
function zoom()
{
	var tdid=trgtcell;
	document.getElementById("maintable").style.visibility="hidden";
	if(zoomed)
	{
		//reset table padding and spacing
		document.getElementById("maintable").cellPadding=tpad;
		document.getElementById("maintable").cellSpacing=cs;
		for(var x=1;document.getElementById("cell"+x);x++)
		{
			//document.getElementById("cell"+x).style.display="";
			if(document.getElementById("cell"+x).colSpan > 1)
			{
				if(navigator.appName=="Microsoft Internet Explorer")
				{
					document.getElementById("cell"+x).width=(origx * document.getElementById("cell"+x).colSpan);
					document.getElementById("cell"+x).height=(origy * document.getElementById("cell"+x).rowSpan);
					//alert(document.getElementById("cell"+x).id);
				}
				else
				{
					document.getElementById("cell"+x).width="";
					document.getElementById("cell"+x).height="";
				}
			}
			else
			{
				document.getElementById("cell"+x).width=origx;
				document.getElementById("cell"+x).height=origy;
			}
			document.getElementById("cell"+x).style.visibility="";
		}
		document.getElementById(tdid).className="screen";
		zoomed=false;
		origx=0;
		origy=0;
		cs=0;
		document.getElementById("zoomchaninfo").style.height="0px";
		document.getElementById("zoomchaninfo").style.display="none";
		document.getElementById("lowertext").style.display="";
	}
	else
	{
		//hide the floating infobox
		clearhidemenu();
		infodivobj.style.visibility="hidden";
		
		cs=document.getElementById("maintable").cellSpacing;
		document.getElementById("maintable").cellPadding=0;
		document.getElementById("maintable").cellSpacing=0;
		for(var x=1;document.getElementById("cell"+x);x++)
		{
			if(tdid != ("cell"+x))
			{
				document.getElementById("cell"+x).style.visibility="hidden";
				document.getElementById("cell"+x).width=1;
				document.getElementById("cell"+x).height=1;
			}
		}
		document.getElementById(tdid).className="closeup";
		origx=document.getElementById(tdid).width;
		origy=document.getElementById(tdid).height;
		document.getElementById(tdid).width=768;
		document.getElementById(tdid).height=432;
		document.getElementById("zoomchaninfo").style.display="";
		document.getElementById("zoomchaninfo").style.height="";
		document.getElementById("lowertext").style.display="none";
		zoomed=true;
	}
	scaleflash();
}