var oldDiv=false;
function showhide(layer_ref)
{
var oDiv = document.getElementById(layer_ref);
if(oDiv.style.display == 'none')
{
if(oldDiv!=false) oldDiv.style.display = 'none';
oDiv.style.display = '';
oldDiv=oDiv;
}
else
{
oDiv.style.display = 'none';
oldDiv=false;
}
}

function setText(id, text)
{
d = document.getElementById(id);
d.innerHTML = text;
return false;
}

function allclose(menu_name,n_menu)
{
for (i=1;i<=n_menu;i++)
{
full_name=menu_name+i;
document.getElementById(full_name).src=this.href;showhide(full_name);
}
}