function openChat(path){
	var myWin=window.open((path==''?'':path+'/')+'chat.html','_blank','width=380, height=285, resizable=0, toolbar=0, status=0, menubar=0, directories=0, location=0, scrollbars=0');
	var w=screen.availWidth;
	var h=screen.availHeight;	
	myWin.moveBy((w-380)/2,(h-285)/2);
	myWin.focus();
}