var message="Copyright © www.gilberttan.com 2003";
function click(e) {
if (document.all) {
if (event.button == 2) {
alert(message);
return false;
}
}
if (document.layers) {
if (e.which == 3) {
alert(message);
return false;
}
}
}
if (document.layers) {
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;

function centrewin(url, tytle, winwidth, winheight, scrolling){
screenh = screen.height;
screenw = screen.width;
topdist = ((screenh-winheight)/2);
leftdist = ((screenw-winwidth)/2);
prefs = "left=" + leftdist + ",top=" + topdist + ",width=" + winwidth + ",height=" + winheight + ",scrollbars=" + scrolling;
window.open([url],[tytle],[prefs]);
}

function closewin(){
window.close();
}