prev_st = story_no-1;
next_st = story_no+1;
//window.alert('file_type = ' + file_type + ' st_no = ' + st_no);
html_str = '<div class="book_navigation">';
if (story_no > 1)
{
html_str = html_str +
'| <a href="story' +prev_st+ '.' +file_type+ '">&lt;&lt;&nbsp; Previous Story</a>  ';
}
html_str = html_str +
'| <a href="../'+author+'.' +file_type+ '">Author</a> ';
html_str = html_str +
'| <a href="toc.' +file_type+ '">Table of Contents</a> |';
if (story_no < last_story)
{
html_str = html_str +
'  <a href="story' +next_st+ '.' +file_type+ '">Next Story &nbsp;&gt;&gt;</a> |';
}
html_str = html_str + '</div><!-- End book navigation -->';
//window.alert('book_naviagation html_str = ' + html_str);
document.write(html_str);