private function makeTableHeader($type, $header, $colspan = 2)
    {
        if (!$this->bInitialized) {
            $header = $this->getVariableName() . " (" . $header . ")";
            $this->bInitialized = true;
        }
        $str_i = ($this->bCollapsed) ? "style=\"font-style:italic\" " : "";

        echo "<table cellspacing=2 cellpadding=3 class=\"dBug_" . $type . "\">
                <tr>
                    <td " . $str_i . "class=\"dBug_" . $type . "Header\" colspan=" . $colspan . " onClick='dBug_toggleTable(this)'>" . $header . "</td>
                </tr>";
    }