function ok_x(url, width, height) 
{ 
	lew = (screen.width/2)-(width/2);
	gor = (screen.height/2)-(height/2);
	a = url.substring(1,1);
	actn=window.open(url, a, "toolbar=no,directories=no,top="+gor +",left="+lew +",menubar=no,width="+ width +",height="+ height +",resizable=no");
}

function ok1(url, width, height) { ok_x (url, width, height); }
function ok2(url, width, height) { ok_x (url, width, height); }
function ok3(url, width, height) { ok_x (url, width, height); }