[TazeTSchnitzel]

I use this bookmarklet:

  javascript:(function()%7Bfunction%20getScript(url,success)%7Bvar%20script=document.createElement('script');script.src=url;var%20head=document.getElementsByTagName('head')%5B0%5D,done=false;script.onload=script.onreadystatechange=function()%7Bif(!done&&(!this.readyState%7C%7Cthis.readyState=='loaded'%7C%7Cthis.readyState=='complete'))%7Bdone=true;success();script.onload=script.onreadystatechange=null;head.removeChild(script)%7D%7D;head.appendChild(script)%7DgetScript('//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js',function()%7Bif(typeof%20jQuery!=='undefined')%7Bif(!$('body').hasClass('collapsible-comments'))%7B$('body').addClass('collapsible-comments');var%20span_html='%3Cspan%20style=%5C'cursor:pointer;margin-right:10px;%5C'%20class=%5C'expand-handle%5C'%3E%5B-%5D%3C/span%3E';if(window.location.href.indexOf('item?id=')!=-1)%7B$('center%20%3E%20table%20%3E%20tbody%20%3E%20tr:eq(2)%20%3E%20td%20%3E%20table:eq(1)%20span.comhead').prepend(span_html)%7Delse%20if(window.location.href.indexOf('threads?id=')!=-1)%7B$('center%20%3E%20table%20%3E%20tbody%20%3E%20tr%20%3E%20td%20%3E%20table%20span.comhead').prepend(span_html)%7D$('.expand-handle').live('click',function()%7Bcurrent_level_width=parseInt($(this).closest('tr').find('td:eq(0)%20%3E%20img').attr('width'),10);$(this).closest('table').closest('tr').nextAll().each(function(index,el)%7Bvar%20elWidth=parseInt($('tbody%20%3E%20tr%20%3E%20td%20%3E%20img',this).attr('width'),10);if(elWidth%3Ecurrent_level_width)%7Bif(elWidth%3C=inner_level_width)%7Binner_level_width=1000;$(this).hide()%7Dif(inner_level_width==1000&&$('.comment',this).css('display')=='none')%7Binner_level_width=elWidth%7D%7Delse%7Breturn%20false%7D%7D);inner_level_width=1000;$(this).text('%5B+%5D').addClass('expand-handle-collapsed').removeClass('expand-handle');$(this).closest('div').nextAll().hide();$(this).closest('div').parent().prev().hide();$(this).closest('div').css(%7B'margin-left':'18px','margin-bottom':'5px'%7D)%7D);$('.expand-handle-collapsed').live('click',function()%7Bcurrent_level_width=parseInt($(this).closest('tr').find('td%20%3E%20img').attr('width'),10);$(this).closest('table').closest('tr').nextAll().each(function(index,el)%7Bvar%20elWidth=parseInt($('tbody%20%3E%20tr%20%3E%20td%20%3E%20img',this).attr('width'),10);if(elWidth%3Ecurrent_level_width)%7Bif(elWidth%3C=inner_level_width)%7Binner_level_width=1000;$(this).show()%7Dif(inner_level_width==1000&&$('.comment',this).css('display')=='none')%7Binner_level_width=elWidth%7D%7Delse%7Breturn%20false%7D%7D);inner_level_width=1000;$(this).text('%5B-%5D').addClass('expand-handle').removeClass('expand-handle-collapsed');$(this).closest('div').nextAll().show();$(this).closest('div').parent().prev().show();$(this).closest('div').css(%7B'margin-left':'0','margin-bottom':'-10px'%7D)%7D)%7D%7D%7D);var%20current_level_width=0;var%20inner_level_width=1000%7D)();

I can't remember who wrote it, but it works.