// JavaScript Document
	function showDesc(num){
		var id = 'sub'+num;
		document.getElementById(id).style.visibility = 'visible';
	}
	function hideDesc(num){
		var id = 'sub'+num;
		document.getElementById(id).style.visibility = 'hidden';
	}
	function popupWindow(strURL)
	{
		newWindow = window.open(strURL, "reference", "width=778,height=500,left=200,top=100,scrollbars=1,toolbar=0,location=0,directories=0,status=0,menuBar=0,resizable=0");
		newWindow.focus();
	}