menu1_on   = new Image(132,32); menu1_on.src    = "img/menu1_on.gif";
menu1_off = new Image(132,32); menu1_off.src  = "img/menu1_off.gif";

menu2_on   = new Image(146,32); menu2_on.src    = "img/menu2_on.gif";
menu2_off = new Image(146,32); menu2_off.src  = "img/menu2_off.gif";

menu3_on   = new Image(84,32); menu3_on.src    = "img/menu3_on.gif";
menu3_off = new Image(84,32); menu3_off.src  = "img/menu3_off.gif";

function deact (imagename)
{ 
if (document.images)
document[imagename].src = eval(imagename + "_off.src"); 
}
function act (imagename)
{
if (document.images)         
document[imagename].src = eval(imagename + "_on.src");  
}