/*-------------------------------------------------------------------------*/
// Hide / Unhide menu elements
/*-------------------------------------------------------------------------*/

function ShowHide(id1, id2)
{
     if (id1 != '') toggleview(id1);
     if (id2 != '') toggleview(id2);
}
     
/*-------------------------------------------------------------------------*/
// Get element by id
/*-------------------------------------------------------------------------*/

function my_getbyid(id)
{
     itm = null;
     
     if (document.getElementById)
     {
          itm = document.getElementById(id);
     }
     else if (document.all)
     {
          itm = document.all[id];
     }
     else if (document.layers)
     {
          itm = document.layers[id];
     }
     
     return itm;
}

/*-------------------------------------------------------------------------*/
// Show/hide toggle
/*-------------------------------------------------------------------------*/

function toggleview(id)
{
     if ( ! id ) return;
     
     if ( itm = my_getbyid(id) )
     {
          if (itm.style.display == "none")
          {
               my_show_div(itm);
          }
          else
          {
               my_hide_div(itm);
          }
     }
}

/*-------------------------------------------------------------------------*/
// Set DIV ID to hide
/*-------------------------------------------------------------------------*/

function my_hide_div(itm)
{
     if ( ! itm ) return;
     
     itm.style.display = "none";
}

/*-------------------------------------------------------------------------*/
// Set DIV ID to show
/*-------------------------------------------------------------------------*/

function my_show_div(itm)
{
     if ( ! itm ) return;
     
     itm.style.display = "";
}