// --------------------Preload Images---------------------

var flag = false;

function imageLoad() { // called with onLoad()
  if (document.images) {
      btn_home_d = new Image(); btn_home_d.src = "/btn_home_d.gif";
      btn_hfest_d = new Image(); btn_hfest_d.src = "/btn_hfest_d.gif";
      btn_exec_d = new Image(); btn_exec_d.src = "/btn_exec_d.gif";
      btn_exam_d = new Image(); btn_exam_d.src = "/btn_exam_d.gif";
      btn_comit_d = new Image(); btn_comit_d.src = "/btn_comit_d.gif";
      btn_cnst_d = new Image(); btn_cnst_d.src = "/btn_cnst_d.gif";
      btn_gate_d = new Image(); btn_gate_d.src = "/btn_gate_d.gif";
      btn_maps_d = new Image(); btn_maps_d.src = "/btn_maps_d.gif";
      btn_repeat_d = new Image(); btn_repeat_d.src = "/btn_repeat_d.gif";
      btn_hoty_d = new Image(); btn_hoty_d.src = "/btn_hoty_d.gif";
      btn_album_d = new Image(); btn_album_d.src = "/btn_album_d.gif";
      btn_email_d = new Image(); btn_email_d.src = "/btn_email_d.gif";
      btn_ftp_d = new Image(); btn_ftp_d.src = "/btn_ftp_d.gif";
      btn_forum_d = new Image(); btn_forum_d.src = "/btn_forum_d.gif";
      btn_swap_d = new Image(); btn_swap_d.src = "/btn_swap_d.gif";
      btn_meet_d = new Image(); btn_meet_d.src = "/btn_meet_d.gif";
      btn_links_d = new Image(); btn_links_d.src = "/btn_links_d.gif";
    return (flag = true); // tells the function that loading is complete
  }
}

if (document.images) { // load the off images in the normal way
    btn_home_u = new Image(); btn_home_u.src = "/btn_home_u.gif";
    btn_hfest_u = new Image(); btn_hfest_u.src = "/btn_hfest_u.gif";
    btn_exec_u = new Image(); btn_exec_u.src = "/btn_exec_u.gif";
    btn_exam_u = new Image(); btn_exam_u.src = "/btn_exam_u.gif";
    btn_comit_u = new Image(); btn_comit_u.src = "/btn_comit_u.gif";
    btn_cnst_u = new Image(); btn_cnst_u.src = "/btn_cnst_u.gif";
    btn_gate_u = new Image(); btn_gate_u.src = "/btn_gate_u.gif";
    btn_maps_u = new Image(); btn_maps_u.src = "/btn_maps_u.gif";
    btn_repeat_u = new Image(); btn_repeat_u.src = "/btn_repeat_u.gif";
    btn_hoty_u = new Image(); btn_hoty_u.src = "/btn_hoty_u.gif";
    btn_album_u = new Image(); btn_album_u.src = "/btn_album_u.gif";
    btn_email_u = new Image(); btn_email_u.src = "/btn_email_u.gif";
    btn_ftp_u = new Image(); btn_ftp_u.src = "/btn_ftp_u.gif";
    btn_forum_u = new Image(); btn_forum_u.src = "/btn_forum_u.gif";
    btn_swap_u = new Image(); btn_swap_u.src = "/btn_swap_u.gif";
    btn_meet_u = new Image(); btn_meet_u.src = "/btn_meet_u.gif";
    btn_links_u = new Image(); btn_links_u.src = "/btn_links_u.gif";
}

function rollIn(imgName) {
  if (document.images && (flag == true)) {
       document[imgName].src = eval(imgName + "_d.src");
  }
}

function rollOut(imgName) { // the normal onMouseOut function
  if (document.images) {
       document[imgName].src = eval(imgName + "_u.src");
  }
}