// Context-sensitive help for PHP.

String editMode = buffer.getMode().toString();
ffpath = new StringBuffer();
ffpath.append("c:/Program Files (x86)/Mozilla Firefox 3.6 Beta 5/firefox.exe ");
keyword = textArea.getSelectedText();
if ((keyword == null) || (keyword.length() == 0)) {
    textArea.selectWord();
    keyword = textArea.getSelectedText();
}

if ((keyword != null) && (keyword.length() > 0)) {
    if (editMode.equals("php")) {
        keyword = keyword.replace('_', '-');
        command = new StringBuffer();
        command.append(ffpath);
        command.append("http://php.net/manual/en/function.");
        command.append(keyword);
        command.append(".php");

        Runtime.getRuntime().exec(command.toString());

    }
}