function showPanel(HREF) {
if (document.all) {   // It's MSIE ...and Opera ... not Netscape 6 either...
    document.all['top_chunk' + chunk[HREF].link].style.visibility = "visible";
    document.all['bot_chunk' + chunk[HREF].link].style.visibility = "visible";
    }
}

function hidePanel(HREF) {
if (document.all) {   // It's MSIE ...and Opera ... not Netscape 6 either...
    document.all['top_chunk' + chunk[HREF].link].style.visibility = "hidden";
    document.all['bot_chunk' + chunk[HREF].link].style.visibility = "hidden";
            }
}

function write_toc(page_loc) {
  if (document.all) {   // It's MSIE ...and Opera ... not Netscape 6 either...
    document.writeln('<div>');
    for (i in chunk) {
      document.write ('<div class="chap_title" style="visibility:hidden;position:absolute;" id="' + page_loc + 'chunk' + chunk[i].link + '">' + chunk[i].title + '</div>');
    }
    document.writeln('<br /></div>');
  }
  document.writeln('<div class="chap_list">');
  for (i in chunk) {
    if (document.URL.indexOf(i) > 0) {
       document.writeln('<font color="red"><u>'  + chunk[i].link + '</u>&nbsp;&nbsp;</font>');
    } else {
      document.write('<a class="dhtml" href="' + i + '" onmouseover="javascript:showPanel(\'' + i + '\')" onmouseout="javascript:hidePanel(\'' + i + '\')">');
      document.write(chunk[i].link);
      document.writeln('</a>&nbsp;&nbsp;');
    }
  }

document.writeln('</div>');
}