if (document.images) 
{  
img20on = new Image ;img20off = new Image;  
img21on = new Image ;img21off = new Image;
img31on = new Image ;img31off = new Image;
img32on = new Image ;img32off = new Image;
img33on = new Image ;img33off = new Image;
img40on = new Image ;img40off = new Image;  
img41on = new Image ;img41off = new Image;
img50on = new Image ;img50off = new Image;
img51on = new Image ;img51off = new Image;
img52on = new Image ;img52off = new Image;
  
img20on.src = "../images/buttons/20o.gif";img20off.src = "../images/buttons/20.gif"; 
img21on.src = "../images/buttons/21o.gif";img21off.src = "../images/buttons/21.gif";
img31on.src = "../images/buttons/31o.gif";img31off.src = "../images/buttons/31.gif"; 
img32on.src = "../images/buttons/32o.gif";img32off.src = "../images/buttons/32.gif"; 
img33on.src = "../images/buttons/33o.gif";img33off.src = "../images/buttons/33.gif";
img40on.src = "../images/buttons/40o.gif";img40off.src = "../images/buttons/40.gif"; 
img41on.src = "../images/buttons/41o.gif";img41off.src = "../images/buttons/41.gif";
img50on.src = "../images/buttons/50o.gif";img50off.src = "../images/buttons/50.gif"; 
img51on.src = "../images/buttons/51o.gif";img51off.src = "../images/buttons/51.gif"; 
img52on.src = "../images/buttons/52o.gif";img52off.src = "../images/buttons/52.gif";

img1007 =  new Image; img1007 = "../images/bg/24.gif";
img1008 =  new Image; img1008 = "../images/bg/26.gif";
img1009 =  new Image; img1009 = "../images/bg/10.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; } }