_ABOUT_URLS = ['about1.html', 'about2.html', 'about3.html'];

function launchAbout(n) {
    window.open(_ABOUT_URLS[n-1], "aboutWin", "width=750,height=565,toolbar=no,menus=no,links=no");
    return false;
}

function launchGame() {
    window.open("game/index.html", "gameWin", "width=530,height=470,toolbar=no,menus=no,links=no");
    return false;
}

function launchSendToFriend() {
    window.open("sendToAFriend.aspx", "gameWin", "width=530,height=470,toolbar=no,menus=no,links=no");
    return false;
}

function writeGameFlash() {
    document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="520" height="460" id="flash" align="middle">');
        document.write('<param name="allowScriptAccess" value="sameDomain" />');
        document.write('<param name="movie" value="invaders_bumageddon.swf" />');
        document.write('<param name="quality" value="high" />');
        document.write('<param name="bgcolor" value="#000000" />');
        document.write('<embed src="invaders_bumageddon.swf" quality="high" bgcolor="#000000" width="520" height="460" name="flash" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />');
    document.write('</object>');
}