function showmenu(obj)
{
 try{

             
var counter = 0;
var sublength = obj.getElementsByTagName('li').length;
while(counter<sublength)
{
obj.getElementsByTagName('li')[counter].style.display="block";
obj.getElementsByTagName('li')[counter].style.visibility="visible";
counter++;
}
 

            }

            catch(e)

            {

                        document.write(e.message + "<br/>")

            }
}

function hidemenu(obj)
{
 try

            {

             
var counter = 0;
var sublength = obj.getElementsByTagName('li').length;
while(counter<sublength)
{
obj.getElementsByTagName('li')[counter].style.display="none";
obj.getElementsByTagName('li')[counter].style.visibility="hidden";
counter++;
}
 

            }

            catch(e)

            {

                        document.write(e.message + "<br/>")

            }
}