goferit = ( parseInt ( navigator.appVersion ) >= 3 );
        
if ( goferit ) {

   menu1on = new Image; menu1on.src = "pics/menus/on_1.gif";
   menu2on = new Image; menu2on.src = "pics/menus/on_2.gif";
   menu3on = new Image; menu3on.src = "pics/menus/on_3.gif";
   menu4on = new Image; menu4on.src = "pics/menus/on_4.gif";
   menu5on = new Image; menu5on.src = "pics/menus/on_5.gif";
   menu6on = new Image; menu6on.src = "pics/menus/on_6.gif";
   menu7on = new Image; menu7on.src = "pics/menus/on_7.gif";

   menu1off = new Image; menu1off.src = "pics/menus/off_1.gif";
   menu2off = new Image; menu2off.src = "pics/menus/off_2.gif";
   menu3off = new Image; menu3off.src = "pics/menus/off_3.gif";
   menu4off = new Image; menu4off.src = "pics/menus/off_4.gif";
   menu5off = new Image; menu5off.src = "pics/menus/off_5.gif";
   menu6off = new Image; menu6off.src = "pics/menus/off_6.gif";
   menu7off = new Image; menu7off.src = "pics/menus/off_7.gif";

}

function img_act ( imgName ) {

   if ( goferit ) {

      imgOn = eval ( imgName + "on.src" );
      document [imgName].src = imgOn;

   }

}


function img_inact ( imgName ) {

   if ( goferit ) {

      imgOff = eval ( imgName + "off.src" );
      document [imgName].src = imgOff;

   }

}


function newwindow ( URL ) {

   window.open ( URL, 'mywindow', 'width=910, height=630, toolbar=yes, location=no, \
                 directories=no, status=yes, menubar=yes, scrollbars=yes, copyhistory=yes, \
                 resizable=yes');
   
}


function newwindownotools ( URL ) {

   window.open ( URL, 'xwindow', 'width=910, height=630, toolbar=no, location=no, \
                 directories=no, status=no, menubar=yes, scrollbars=yes, copyhistory=yes, \
                 resizable=yes');
   
}

function showpic ( URL ) {

   window.open ( URL, 'xwindow', 'toolbar=no, location=no, \
                 directories=no, status=no, menubar=yes, scrollbars=yes, copyhistory=yes, \
                 resizable=no');
   
}

function doreload() {

   window.location.reload();

}


function toggleDisplay(id1, id2 ){

   if (id2.style.display=="none"){

      id2.style.display="inline";
      id1.style.color="black";

   }
   else {

      if (id2.style.display=="inline"){

         id2.style.display="none";
         id1.style.color="orange";

      }

   }

}