if (document.images) 
  {
    btn1Over = new Image();
    btn1Over.src = "../images/navbar/home2.gif";
    btn2Over = new Image();
    btn2Over.src = "../images/navbar/faculty2.gif";
    btn3Over = new Image();
    btn3Over.src="../images/navbar/certificates2.gif";
    btn4Over = new Image();
    btn4Over.src="../images/navbar/enroll2.gif";
    btn5Over = new Image();
    btn5Over.src="../images/navbar/catalog2.gif";
    btn6Over = new Image();
    btn6Over.src="../images/navbar/contact2.gif";
    btn7Over = new Image();
    btn7Over.src="../images/navbar/news2.gif";
    btn8Over = new Image();
    btn8Over.src="../images/navbar/jobs2.gif";
  }

  //Create array of button "out" images
  if (document.images) 
  {
    btn1Out = new Image();
    btn1Out.src = "../images/navbar/home1.gif";
    btn2Out = new Image();
    btn2Out.src = "../images/navbar/faculty1.gif";
    btn3Out = new Image();
    btn3Out.src="../images/navbar/certificates1.gif";
    btn4Out = new Image();
    btn4Out.src="../images/navbar/enroll1.gif";
    btn5Out = new Image();
    btn5Out.src="../images/navbar/catalog1.gif";
    btn6Out = new Image();
    btn6Out.src="../images/navbar/contact1.gif";
    btn7Out = new Image();
    btn7Out.src="../images/navbar/news1.gif";
    btn8Out = new Image();
    btn8Out.src="../images/navbar/jobs1.gif";
  }
	
  //function to activate OVER images
  function btnOver(btnName) 
  {
    if (document.images) 
    {
      document[btnName].src = eval(btnName + "Over.src");
    }
  }

  //function to activate OUT images
  function btnOut(btnName) 
  {
    if (document.images) 
    {
    document[btnName].src = eval(btnName + "Out.src");
    }
  }