function tabpanel_mouseover(node)
{
  var panel_1_width = document.getElementById("tabpanel_1_sublist").offsetWidth; 
  document.getElementById("tabpanel_1").className = ""; 
  node.className = "tabpanel_default"; 
  if (panel_1_width) {
    if (document.getElementById("tabpanel_2_sublist"))
      document.getElementById("tabpanel_2_sublist").style.width = (panel_1_width - 2) + "px"; 
    if (document.getElementById("tabpanel_3_sublist"))
      document.getElementById("tabpanel_3_sublist").style.width = (panel_1_width - 2) + "px"; 
    if (document.getElementById("tabpanel_4_sublist"))
      document.getElementById("tabpanel_4_sublist").style.width = (panel_1_width - 2) + "px"; 
  }
}

function tabpanel_mouseout(node)
{
  node.className = ""; 
  document.getElementById("tabpanel_1").className = "tabpanel_default"; 
}