// Basic toggle javascript from the Movable Type blog
// http://blog.movalog.com/a/javascript-toggle-visibility/


    function toggle_showhide(id) {
       var changestyle = document.getElementById(id);
       if(changestyle.style.display == 'none' )
          changestyle.style.display = 'block';
       else
          changestyle.style.display = 'none';
    }

    function toggle_hideshow(id) {
       var changestyle = document.getElementById(id);
       if(changestyle.style.display == 'block' )
          changestyle.style.display = 'none';
       else
          changestyle.style.display = 'block';
    }