navimages = new Array();
navimages[0] = new Image();
navimages[0].src = "images/nav/clock_c.gif";
navimages[1] = new Image();
navimages[1].src = "images/navt/s_b.gif";
navimages[2] = new Image();
navimages[2].src = "images/nav/clock_u.gif";
navimages[3] = new Image();
navimages[3].src = "images/navt/s_g.gif";
navimages[4] = new Image();
navimages[4].src = "images/nav/disks.gif";
navimages[5] = new Image();
navimages[5].src = "images/navt/r_b.gif";
navimages[6] = new Image();
navimages[6].src = "images/nav/disks_u.gif";
navimages[7] = new Image();
navimages[7].src = "images/navt/r_g.gif";
navimages[8] = new Image();
navimages[8].src = "images/nav/notes.gif";
navimages[9] = new Image();
navimages[9].src = "images/navt/i_b.gif";
navimages[10] = new Image();
navimages[10].src = "images/nav/notes_u.gif";
navimages[11] = new Image();
navimages[11].src = "images/navt/i_g.gif";
navimages[12] = new Image();
navimages[12].src = "images/nav/clip.gif";
navimages[13] = new Image();
navimages[13].src = "images/navt/k_b.gif";
navimages[14] = new Image();
navimages[14].src = "images/nav/clip_u.gif";
navimages[15] = new Image();
navimages[15].src = "images/navt/k_g.gif";

defentry = -1;

function set(idx)
{
document.images["i" + (idx + 1) + "_1"].src = navimages[idx * 4].src;
document.images["i" + (idx + 1) + "_2"].src = navimages[idx * 4 + 1].src;
}

function unset(idx)
{
if (idx != defentry)
  {
  document.images["i" + (idx + 1) + "_1"].src = navimages[idx * 4 + 2].src;
  document.images["i" + (idx + 1) + "_2"].src = navimages[idx * 4 + 3].src;
  }
}

function setDefault(idx)
{
defentry = idx;
}