var tabclose;

/* mouse over Effekte auf den Menübildern */
function changeImg(imgid, aktion, sel_img, unsel_img) {
  var link;
  if (aktion == 1) {
    link = 'self.document.' + imgid + '.src = sel_img;'
  } else {
    link = 'self.document.' + imgid + '.src = unsel_img;'
  }
  eval(link);
  return;
}

/* mouse over Effekte auf den Menübildern */
function showSubmenu(id, action) {
  var objid = 'submenu'+id;
  var ele = xGetElementById( objid );
  if ( ele && action == 1) {
    xShow( ele );
    dontclose=id;
  } else {
    xHide( ele );
    dontclose=0;
  }
  return;
}


function showTabelle(id) {

  var tabid= "table_"+id;
  var ele = xGetElementById( tabid );

  var imgopen = xGetElementById( "openimg_"+id );
  var imgclose = xGetElementById( "closeimg_"+id );

  if ( ele ) {
    if (ele.style.display == "block") {
      xDisplay( ele, "none" );      
      xDisplay( imgopen, "inline" );
      xDisplay( imgclose, "none" );
    } else {
      xDisplay( ele, "block" );      
      xDisplay( imgopen, "none" );
      xDisplay( imgclose, "inline" );
    }    
  }

  return;
}