if (document.images) 
   { 
   tac1on = new Image(48, 48); tac1on.src = "images/menuclock_on.gif";  
   tac2on = new Image(48, 48); tac2on.src = "images/messy_time_on.gif";  
   tac3on = new Image(48, 48); tac3on.src = "images/telly_time_on.gif";
   tac4on = new Image(48, 48); tac4on.src = "images/news_time_on.gif";  
   tac5on = new Image(48, 48); tac5on.src = "images/story_time_on.gif";  
   tac6on = new Image(48, 48); tac6on.src = "images/song_time_on.gif";  
   tac7on = new Image(48, 48); tac7on.src = "images/surprise_time_on.gif";  
   tac8on = new Image(105, 70); tac8on.src = "images/tweeniemenu_on.gif";  
  
   tac1off = new Image(48, 48); tac1off.src = "images/menuclock_off.gif";  
   tac2off = new Image(48, 48); tac2off.src = "images/messy_time_off.gif";  
   tac3off = new Image(48, 48); tac3off.src = "images/telly_time_off.gif";
   tac4off = new Image(48, 48); tac4off.src = "images/news_time_off.gif";  
   tac5off = new Image(48, 48); tac5off.src = "images/story_time_off.gif";  
   tac6off = new Image(48, 48); tac6off.src = "images/song_time_off.gif";  
   tac7off = new Image(48, 48); tac7off.src = "images/surprise_time_off.gif";  
   tac8off = new Image(105, 70); tac8off.src = "images/tweeniemenu_off.gif";      
    } 
    function img_act(imgName) { if (document.images) { imgOn = eval(imgName + "on.src"); document [imgName].src = imgOn; } } function img_inact(imgName) { if (document.images) { imgOff = eval(imgName + "off.src"); document [imgName].src = imgOff; } }