var win = null;
function NewWindow(mypage, myname, w, h, scroll) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
   var settings  = 'height = '     + h + ', ';
       settings += 'width = '      + w + ', ';
       settings += 'top = '        + wint + ', ';
       settings += 'left = '       + winl + ', ';
       settings += 'scrollbars = ' + scroll + ', ';
       settings += 'resizable = no';

	win = window.open(mypage, myname, settings);
	if(parseInt(navigator.appVersion) >= 4) {
		win.window.focus();
	}
}