/* Copyright 2007 Situation Publishing Ltd. http://www.theregister.co.uk/ */function mk_child_elem(parent,name){var elem=document.createElement(name);parent.appendChild(elem);return elem;}
function add_story_li(list_elem,story,first_item){var new_li=mk_child_elem(list_elem,'li');if(first_item)
new_li.className='FirstItem';var new_a=mk_child_elem(new_li,'a');new_a.setAttribute('href',story[1]);new_a.setAttribute('title',story[3]);new_a.innerHTML=story[2];}
function create_top_n_box_tabs(site_title,section_title){var tabs_el=document.getElementById('TopNBoxTabs');if(!tabs_el)
return;var table_el=mk_child_elem(tabs_el,'table');var tbody_el=mk_child_elem(table_el,'tbody');var tr_el=mk_child_elem(tbody_el,'tr');var td_el=mk_child_elem(tr_el,'td');td_el.id='TopNBoxHeadingSite';var div_el=mk_child_elem(td_el,'div');var a_el=mk_child_elem(div_el,'a');a_el.onclick=function(){return top_n_select_site()};a_el.appendChild(document.createTextNode(site_title));td_el=mk_child_elem(tr_el,'td');td_el.id='TopNBoxHeadingSection';td_el.className='Selected';div_el=mk_child_elem(td_el,'div');a_el=mk_child_elem(div_el,'a');a_el.onclick=function(){return top_n_select_section()};a_el.appendChild(document.createTextNode(section_title));}
var top_n_site_mode=!RegPopularStoriesSection;function top_n_select_site(){if(top_n_site_mode)
return false;var site_elem=document.getElementById('TopNBoxHeadingSite');site_elem.className='Selected';var section_elem=document.getElementById('TopNBoxHeadingSection');section_elem.className='';top_n_site_mode=true;select_unread_popular_stories();return false;}
function top_n_select_section(){if(!top_n_site_mode)
return false;var site_elem=document.getElementById('TopNBoxHeadingSite');site_elem.className='';var section_elem=document.getElementById('TopNBoxHeadingSection');section_elem.className='Selected';top_n_site_mode=false;select_unread_popular_stories();return false;}
function top_n_good_to_go(){return document.getElementById&&typeof RegPopularStories!='undefined'&&RegPopularStories&&typeof VSs!='undefined'&&VSs;}
function select_unread_popular_stories(){if(!top_n_good_to_go())
return;var popular;if(top_n_site_mode)
popular=RegPopularStories;else if(RegPopularStoriesSection)
popular=RegPopularStoriesSection;else
return;var popular_len=popular.length;var elem=document.getElementById('TopNBox');var children=elem.getElementsByTagName('ol');if(children.length!=1)
return;var list_elem=children[0];children=list_elem.getElementsByTagName('li');var max_items=children.length;while(list_elem.childNodes[0])
list_elem.removeChild(list_elem.childNodes[0]);var story_read=new Object;for(var i=0;VSs.length>i;++i)
story_read[VSs[i]]=1;var num_items=0;for(var i=0;popular_len>i;++i){if(num_items==max_items)
break;var story=popular[i];if(story_read[story[0]])
continue;add_story_li(list_elem,story,(num_items==0));++num_items;}
for(var i=0;popular_len>i;++i){if(num_items==max_items)
break;var story=popular[i];if(!story_read[story[0]])
continue;add_story_li(list_elem,story,(num_items==0));++num_items;}}