// <!--

        var rollover_OK = "no";

        function readyToGo() {

                rollover_OK = "yes";

                }

        if (document.images) {

           var button1_OFF = new Image();
           var button1_ON  = new Image();
           var button1_PAGE  = new Image();
           
           var button2_OFF = new Image();
           var button2_ON  = new Image();
           var button2_PAGE  = new Image();
           
           var button3_OFF = new Image();
           var button3_ON  = new Image();
           var button3_PAGE  = new Image();
           
           var button4_OFF = new Image();
           var button4_ON  = new Image();
           var button4_PAGE  = new Image();
                      
           var button5_OFF = new Image();
           var button5_ON  = new Image();
           var button5_PAGE  = new Image();
           
           var button6_OFF = new Image();
           var button6_ON  = new Image();
           var button6_PAGE  = new Image();
           
            
           
                      
                      
   		   button1_OFF.src = "images/nav/but_why.gif";
           button1_ON.src  = "images/nav/but_why_hi.gif";
           button1_PAGE.src  = "images/nav/but_why_page.gif";
           
           button2_OFF.src = "images/nav/but_prof.gif";
           button2_ON.src  = "images/nav/but_prof_hi.gif";
           button2_PAGE.src  = "images/nav/but_prof_page.gif";
           
           button3_OFF.src = "images/nav/but_jobs.gif";
           button3_ON.src  = "images/nav/but_jobs_hi.gif";
           button3_PAGE.src  = "images/nav/but_jobs_page.gif";
           
           button4_OFF.src = "images/nav/but_apply.gif";
           button4_ON.src  = "images/nav/but_apply_hi.gif";
           button4_PAGE.src  = "images/nav/but_apply_page.gif";
           
           button5_OFF.src = "images/nav/but_contact.gif";
           button5_ON.src  = "images/nav/but_contact_hi.gif";
           button5_PAGE.src  = "images/nav/but_contact_page.gif";
           
           button6_OFF.src = "images/nav/but_travel.gif";
           button6_ON.src  = "images/nav/but_travel_hi.gif";
           button6_PAGE.src  = "images/nav/but_travel_page.gif";
           
           
 
                      
  }



  function showButton(num,state) {

    if ((document.images) && (rollover_OK == "yes")) {

        document.images["button" + num].src = eval("button" + num + 
"_" + state + ".src");

    }

  }

// -->