var trainerChat=false;

function openTrainerChat(href)
{
	if (trainerChat && trainerChat.closed == false)
	{
		trainerChat.focus();
		var currenthref = "" + trainerChat.location.href;
		var newhref = "" + href;
		if (currenthref.indexOf(newhref) == -1)
		{
			trainerChat.document.close();
			trainerChat.location.replace(newhref);
		}
	} 
	else
	{
		trainerChat = window.open("" + href,"trainer","titlebar=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,width=640,height=480,scrollbars=no");
		trainerChat.focus();
	}
}