var invWin = null;

function prodAvailItem(urlInvLookup, invMsg){
	
if(invMsg.length > 0) 
{
	alert(invMsg);
	return false;
}

if (invWin && invWin.open && !invWin.closed)
{
	invWin.close();
}

invWin = window.open(urlInvLookup,'','dependent=yes,toolbar=no,location=no,directories=no,status=no' +
	',menubar=no,resizable=yes,copyhistory=no,scrollbars=yes,Width=690,height=450,innerWidth=690,innerheight=450')

invWin.focus();

return false;
}