function popWin(urlx, winw, winh, winx, scrollyn, toolyn, menuyn){
	if(!scrollyn){
		scrollyn = "no";
	}
	if(!toolyn){
		toolyn = "no";
	}
	if(!menuyn){
		menuyn = "no";
	}
	if(!winx){
		winx = "_blank";
	}
	var screenh = (screen.height)/2;
	var screenw = (screen.width)/2;
	var wint = screenh - (winh/2);
	var winl = screenw - (winw/2);
	window.open(urlx,winx,'statusbar=no,toolbar='+toolyn+',directories=no,status=no,menubar='+menuyn+',scrollbars='+scrollyn+',resizable=no,copyhistory=no,width='+winw+',height='+winh+',top='+wint+',left='+winl);
}