var g_oTextField;
	function addCal(sFieldName)
	{
		// optional function argument
		var sPath = "";
		if( arguments.length > 1 )
		{
			sPath = arguments[1];
			if( sPath.length > 1 )
				if( sPath.charAt(sPath.length-1) != '/' )
					sPath = sPath + '/';
		}

		var sOnClick = "return showCal(" + sFieldName + ", '"+sPath+"');";
		document.write('<a href="'+sPath+'calendar.php" target="_blank" style="margin:2px;" OnClick="'+sOnClick+'"><img height="16" width="16" src="'+sPath+'images/calendar.gif" border="0"></a>');
	}
	function showCal(oTextField)
	{
		// optional function argument
		var sPath = "";
		if( arguments.length > 1 )
		{
			sPath = arguments[1];
			if( sPath.length > 1 )
				if( sPath.charAt(sPath.length-1) != '/' )
					sPath = sPath + '/';
		}

		g_oTextField = oTextField;
		window.open( sPath+'calendar.php?sel=' + escape(oTextField.value), 'popupcalendar', 'height=150,width=180,scrollbars=no,resizable=no,menubar=no,toolbar=no,location=no,status=no');
		return false;
	}
	function calendarPopupClick(value)
	{
		if( g_oTextField )
			g_oTextField.value = value;
	}