// <!--

        var rollover_OK = "no";

        function readyToGo() {

                rollover_OK = "yes";

                }

        if (document.images) {

           var button1_OFF = new Image();
           var button1_ON  = new Image();

           var button2_OFF = new Image();
           var button2_ON  = new Image();

           var button3_OFF = new Image();
           var button3_ON  = new Image();

           var button4_OFF = new Image();
           var button4_ON  = new Image();

           var button5_OFF = new Image();
           var button5_ON  = new Image();
                    
           
           
   
           button1_OFF.src = "images/nav/about_but.gif";
           button1_ON.src  = "images/nav/about_but_hi.gif";

  		   button2_OFF.src = "images/nav/activities_but.gif";
           button2_ON.src  = "images/nav/activities_but_hi.gif";
           
           button3_OFF.src = "images/nav/spaces_but.gif";
           button3_ON.src  = "images/nav/spaces_but_hi.gif";
           
           button4_OFF.src = "images/nav/past_but.gif";
           button4_ON.src  = "images/nav/past_but_hi.gif";
           
           button5_OFF.src = "images/nav/home_but.gif";
           button5_ON.src  = "images/nav/home_but_hi.gif";
           

           
                      
                     
  }



  function showButton(num,state) {

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

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

    }

  }

// -->