function secondaryWindow(mypage,myname,w,h,features) 
{
	if(screen.width) 
	{
		var winl = (screen.width-w)/2;
		var wint = (screen.height-h)/2;
	}
	else 
	{
		winl = 0;
		wint = 0;
	}
	if (winl < 0) 
	{
		winl = 0;
	}
	if (wint < 0)
	{
		wint = 0;
	}
	
	var settings = 'height=' + h + ',';
	settings += 'width=' + w + ',';
	settings += 'top=' + wint + ',screenY=' + wint + ',';
	settings += 'left=' + winl + ',screenX=' + winl + ',';
	settings += features;
	win = window.open(mypage,myname,settings);
	win.window.focus();
}