if (document.images) 
{  
img01on = new Image ;img01off = new Image;  
img02on = new Image ;img02off = new Image;
img03on = new Image ;img03off = new Image;
img04on = new Image ;img04off = new Image;
img05on = new Image ;img05off = new Image;
img06on = new Image ;
img07on = new Image ;
img08on = new Image ;
img09on = new Image ;
img10on = new Image ;
img11on = new Image ;img11off = new Image;
img12on = new Image ;img12off = new Image;
img13on = new Image ;img13off = new Image;
img14on = new Image ;img14off = new Image;
img15on = new Image ;img15off = new Image;
  
img01on.src = "images/menu_left_01_over.gif";img01off.src = "images/menu_left_01.gif"; 
img02on.src = "images/menu_left_02_over.gif";img02off.src = "images/menu_left_02.gif";
img03on.src = "images/menu_left_03_over.gif";img03off.src = "images/menu_left_03.gif"; 
img04on.src = "images/menu_left_04_over.gif";img04off.src = "images/menu_left_04.gif"; 
img05on.src = "images/menu_left_05_over.gif";img05off.src = "images/menu_left_05.gif";
img06on.src = "images/menu_top_01.gif";
img07on.src = "images/menu_top_02.gif";
img08on.src = "images/menu_top_03.gif";
img09on.src = "images/menu_top_04.gif";
img10on.src = "images/menu_top_05.gif";
img11on.src = "images/menu_left_06_over.gif";img11off.src = "images/menu_left_06.gif";
img12on.src = "images/menu_left_07_over.gif";img12off.src = "images/menu_left_07.gif";
img13on.src = "images/menu_left_08_over.gif";img13off.src = "images/menu_left_08.gif";
img14on.src = "images/menu_left_09_over.gif";img14off.src = "images/menu_left_09.gif";
img15on.src = "images/menu_left_10_over.gif";img15off.src = "images/menu_left_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; } }