function MenuOn2(){
         obj=document.getElementById("submenu2").style.visibility="visible";
}
function MenuOff2(){
         obj=document.getElementById("submenu2").style.visibility="hidden";
}
function MenuOn3(){
         obj=document.getElementById("submenu3").style.visibility="visible";
}
function MenuOff3(){
         obj=document.getElementById("submenu3").style.visibility="hidden";
}
function MenuOn4(){
         obj=document.getElementById("submenu4").style.visibility="visible";
}
function MenuOff4(){
         obj=document.getElementById("submenu4").style.visibility="hidden";
}
function MenuOn5(){
         obj=document.getElementById("submenu5").style.visibility="visible";
}
function MenuOff5(){
         obj=document.getElementById("submenu5").style.visibility="hidden";
}