function showmenu(id){
if (document.getElementById){
eval("document.getElementById(id).style.visibility = 'visible'");
}else{
if (document.layers){
document.layers[id].visibility = 'show';
}else{
if (document.all){
eval("document.all." + id + ".style.visibility = 'visible'");
}
}
}
}
 
function hidemenu(id){
if (document.getElementById){
eval("document.getElementById(id).style.visibility = 'hidden'");
}else{
if (document.layers){
document.layers[id].visibility = 'hide';
}else{
if (document.all){
eval("document.all." + id + ".style.visibility = 'hidden'");
}
}
}
}


function bgon(id){
document.getElementById(id).style.backgroundImage = "url(img/menuon.png)";
}
function bgoff(id){
document.getElementById(id).style.backgroundImage = "url(img/menuoff.png)";
}
function linkon(id){
document.getElementById(id).style.color = "#FFFFFF";
}
function linkoff(id){
document.getElementById(id).style.color = "#FFFFFF";
}
function subon(id){
document.getElementById(id).style.backgroundColor = "white";
}
function suboff(id){
document.getElementById(id).style.backgroundColor = "yellow";
}