function loadImages()
{ this[1] = new Image();
  this[1].src = "images/Hom.gif";
  this[2] = new Image();
  this[2].src = "images/Hom1.gif";
  this[3] = new Image();
  this[3].src = "images/Bio.gif";
  this[4] = new Image();
  this[4].src = "images/Bio1.gif";
  this[5] = new Image();
  this[5].src = "images/Res.gif";
  this[6] = new Image();
  this[6].src = "images/Res1.gif";
  this[7] = new Image();
  this[7].src = "images/Rep.gif";
  this[8] = new Image();
  this[8].src = "images/Rep1.gif";
  this[9] = new Image();
  this[9].src = "images/Rev.gif";
  this[10] = new Image();
  this[10].src = "images/Rev1.gif";

}
if (document.images)
{ loadImages();
}

function switchNav(i, flag)
{ if (document.images)
  { if (flag == 0)
    { document.images[i].src = "images/Hom.gif";
    }
    if (flag == 1)
    { document.images[i].src = "images/Hom1.gif";
    }
    if (flag == 2)
    { document.images[i].src = "images/Bio.gif";
    }
    if (flag == 3)
    { document.images[i].src = "images/Bio1.gif";
    }
    if (flag == 4)
    { document.images[i].src = "images/Res.gif";
    }
    if (flag == 5)
    { document.images[i].src = "images/Res1.gif";
    } 
    if (flag == 6)
    { document.images[i].src = "images/Rep.gif";
    }
    if (flag == 7)
    { document.images[i].src = "images/Rep1.gif";
    }
    if (flag == 8)
    { document.images[i].src = "images/Rev.gif";
    }
    if (flag == 9)
    { document.images[i].src = "images/Rev1.gif";
    }
  }
}