function searchaclick()
{
  var q = document.getElementById("searchq");
  if( q == null ) return true;
  if( q.value == "" ) return true;
  searchgo();
  return false;
}

function searchgo()
{
  var q = document.getElementById("searchq");
  var f = document.getElementById("searchf");

  if( (q == null) || (f == null) ) return;
  if( q.value == "" )
  {
    alert( "Please enter at least one keyword" );
    q.focus();
    return;
  }

  if( f.value == "snmp" )
  {
    var newloc = "/mibs_search.aspx?q=" + encodeURIComponent( q.value ) + "&";
    window.location = newloc;
    return;
  }

  var newloc = "/search.aspx?q=" + encodeURIComponent( q.value ) + "&";
  if( f.value != "" ) newloc += "f=" + encodeURIComponent( f.value ) + "&";
  window.location = newloc;
}

function searchkeydown(e)
{
  var keycode;
  if (window.event) keycode = window.event.keyCode;
  else if (e) keycode = e.which;
  else return true;

  if (keycode == 13)
  {
    searchgo();
    return false;
  }

  return true;
}