/**
 * Activates the selected tab and sets the others inactive
 */
function tabstrip_toggle(tabstripID, tabID)
{
   var tabstrip = document.getElementById(tabstripID);
   for (var i = 0; i < tabstrip.childNodes.length; i++)
   {
      var node = tabstrip.childNodes[i];
      if (node.nodeName == "LI")
      {
         var tab = document.getElementById(node.id.substring(4));
         if (node.id == "tab_" + tabID)
         {
            node.className = "tabstrip_active";
            tab.style.display = "block";
         }
         else
         {
            node.className = "tabstrip_inactive";
            tab.style.display = "none";
         }
      }
   }
}