function showhide(check)
{
if(check==1)
{
menu1.style.visibility='visible';
}
else 
{
menu1.style.visibility='hidden';
}
if(check==2) 
{
menu2.style.visibility='visible';
}
else
{
menu2.style.visibility='hidden'; 
}
if(check==3)
{
menu3.style.visibility='visible';
}
else 
{ 
menu3.style.visibility='hidden';
}
}  
function hidemenu()
{
menu1.style.visibility='hidden';
menu2.style.visibility='hidden';
menu3.style.visibility='hidden';
submenu1.style.visibility='hidden';
submenu2.style.visibility='hidden';
ssubmenu1.style.visibility='hidden';
ssubmenu2.style.visibility='hidden';
ssubmenu3.style.visibility='hidden';
ugmenu.style.visibility='hidden';
}
function smenu(scheck1)
{
if(scheck1==1)
{
ugmenu.style.visibility='visible';
}
else
{
ugmenu.style.visibility='hidden';
}
if(scheck1==2)
{
 submenu1.style.visibility='visible';
}
else
{
submenu1.style.visibility='hidden';
}
}
function smenu1(scheck2)
{
if(scheck2==1)
{
submenu2.style.visibility='visible';
}
else
{
submenu2.style.visibility='hidden';
}
}
function ssmenu(sscheck1)
{
if(sscheck1==1)
{
ssubmenu1.style.visibility='visible';
}
else{ssubmenu1.style.visibility='hidden';
}
if(sscheck1==2)
{
ssubmenu2.style.visibility='visible';
}
else
{
ssubmenu2.style.visibility='hidden';
}
if(sscheck1==3)
{
ssubmenu3.style.visibility='visible';
}
else
{
ssubmenu3.style.visibility='hidden';
}
}