function tog(whichLayer)
{
	if (document.getElementById)
	{
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		for(i = 1; i <= 15; i++)
		{
			if (whichLayer != ("desc" + i))
			{
				if (document.getElementById(("desc" + i)))	// in case element is missing. 
				{
					document.getElementById(("desc" + i)).style.display = "";
				}
			}
		}
		style2.display = style2.display? "":"block";
	}
	else if (document.all)
	{
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		for(i = 1; i <= 15; i++)
		{
			if (whichLayer != ("desc" + i))
			{
				if (document.all[whichLayer])
				{
					document.all["desc" + i].style.display = "";
				}
			}
		}
		clear (style2, whichLayer);
		style2.display = style2.display? "":"block";
	}
	else if (document.layers)
	{
	// this is the way nn4 works
	var style2 = document.layers[whichLayer].style;
		for(i = 1; i <= 15; i++)
		{
			if (whichLayer != ("desc" + i))
			{
				if (document.layers[whichLayer])
				{
					document.layers["desc" + i].style.display = "";
				}
			}
		}
		style2.display = style2.display? "":"block";
	}
}
function sfoc(){document.srch.srchtxt.focus();}