function go(url,w,h) {
	var dim = eval('"width=' + w + ',height=' + h + ',toolbar=0, location=0,directories=0,status=0, menubar=0,scrollbars=0,resizable=0"');
	Npop = window.open(url,"instruct",dim);
	oldWin = Npop.opener;
}

function goScroll(url,w,h) {
	var dim = eval('"width=' + w + ',height=' + h + ',toolbar=0, location=0,directories=0,status=0, menubar=0,scrollbars=1,resizable=1"');
	Npop = window.open(url,"instruct",dim);
	oldWin = Npop.opener;
}

function tonyspecial(url,w,h) {
	var w2;
	if (screen.width<w)
		w2 = screen.width;
	else
		w2 = w;
	var dim = eval('"width=' + w2 + ',height=' + h + ',toolbar=0, location=0,directories=0,status=0, menubar=0,scrollbars=1,resizable=0"');
	Npop = window.open(url,"instruct",dim);
	Npop.moveTo((screen.width-w2)/2,(screen.height-h)/3);
	oldWin = Npop.opener;
}