function popup (x) {
	//width = screen.width-200;
	width = 500;
	newWin = window.open(x,'','width='+width+',height=500,top='+(screen.height-400)/2+',left='+(screen.width-width)/2+',status=yes,menubar=yes,resizable=yes');
	if (window.focus) {newWin.focus()}
	return false;
}