// >butbar.js
// Copyright © 7th software, 2006
// All rights reserved.

var jnorm = new Image;
var jleft = new Image;
var jrght = new Image;
var norm  = new Array;
var over  = new Array;
var link  = new Array('about', 'news', 'software', 'contact', 'links');
var loaded = !(1 + navigator.userAgent.indexOf('Netscape6'));

function set_root(root)
{
  if (document.images)
  {
    jnorm.src = root + "images/butbar/bar.gif";
    jrght.src = root + "images/butbar/bar1.gif";
    jleft.src = root + "images/butbar/bar2.gif";

    for (i=0; i<link.length; i++)
    {
      norm[i]     = new Image;
      norm[i].src = root + "images/butbar/" + link[i] + "0.gif";
      over[i]     = new Image;
      over[i].src = root + "images/butbar/" + link[i] + "1.gif";
    }
  }
}

function img_over(num)
{
  if (document.images && loaded)
  {
    document.images["joint" + num].src     = jleft.src;
    document.images["joint" + (num+1)].src = jrght.src;
    document.images[link[num]].src         = over[num].src;
  }
}

function img_norm(num)
{
  if (document.images && loaded)
  {
    document.images["joint" + num].src     = jnorm.src;
    document.images["joint" + (num+1)].src = jnorm.src;
    document.images[link[num]].src         = norm[num].src;
  }
}