function switch_to_tab(id,name,rpc,target) {
    document.getElementById(rpc).innerHTML = '<img src="img/loading.gif" width="16" height="16" border="0" alt="" style="margin-right: 5;" align="absmiddle">Moment...';
    window.setTimeout("new Ajax.Updater('"+rpc+"', '"+target+"')",500);
    for (c = 0; document.getElementById('tab_'+name+'_'+c); c++) {
      if (c == id) { document.getElementById('tab_'+name+'_'+c).className='tab1'; }
      else { document.getElementById('tab_'+name+'_'+c).className='tab0'; }
      document.getElementById('tab_'+name+'_'+c).blur();
    }
   return false;
  }