// Popup Window Code
	function popup(winname, winurl, winopt)
	{
		var newwin  = window.open(winurl,winname,winopt);
	}

	function popupCenter(winname, url, winwidth, winheight){

	  // Center the popup window
	  var top   = (screen.availHeight - winheight - 29) / 2;
	  var left  = (screen.availWidth - winwidth - 10) / 2;

	  var urlPrefix = "";
	  var winurl    = url;

	  //var winname   = "popup";
	  var winopt    = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,copyhistory=0,resizable=0,width="+winwidth+",height="+winheight+",left="+left+",top="+top;
	  newwin    = window.open(winurl,winname,winopt);

	}

	// Button Rollover Code
	function rollOver(imgID, imgName)
	{
		if (navigator.appName== "Netscape" && parseInt(navigator.appVersion) >= 3)
			document.images[imgID].src = "img/" + imgName;
		else if (navigator.appName != "Netscape" && parseInt(navigator.appVersion) >= 4) 
			document.images[imgID].src = "img/" + imgName;
	}