var section=[];var cursection=null;var refpage=document.referrer;function getentries(){var entry=0;var div=document.getElementsByTagName('div');for(var i=0;i<div.length;i++){if((div[i].className=="copy")||(div[i].className.indexOf('comments')!=-1)){if(div[i].className=="copy"){var span=div[i].getElementsByTagName('span');for(var s=0;s<span.length;s++){if(span[s].className=="smallcopy"){var links=span[s].getElementsByTagName('a');for(var a=0;a<links.length;a++){if(links[a].className=="more"){div[i].permalink=links[a];}}}}}
section[section.length]=div[i];}}}
function offsetTop(obj){var y=0;for(;obj;obj=obj.offsetParent){y+=obj.offsetTop;}
return y;}
function getYScroll(){var yscroll;if(self.pageYOffset)
{yscroll=self.pageYOffset;}
else if(document.documentElement&&document.documentElement.scrollTop)
{yscroll=document.documentElement.scrollTop;}
else if(document.body)
{yscroll=document.body.scrollTop;}
return yscroll;}
function prevArticle(){var ypos=getYScroll();for(var i=section.length;--i>=0;){if(offsetTop(section[i])<ypos){window.scroll(0,offsetTop(section[i]));cursection=i;break;}}}
function nextArticle(){var ypos=getYScroll();for(var i=0;i<section.length;i++){if(offsetTop(section[i])>ypos){window.scroll(0,offsetTop(section[i]));cursection=i;break;}}}
function highlightPost(s){s.style.background='#FFFFE0';}
function followPost(){if((cursection>=0)&&(section[cursection].permalink)&&(section[cursection].permalink!=null)){window.location=section[cursection].permalink.href;}}
function prevPage(){if(refpage!=''){window.location=refpage;}}
function navkey(key){var modifiedKey=false;if(!key)key=window.event;if(!key.target&&!key.srcElement)return;if(key.target&&((key.target.tagName.toLowerCase()=='input')||(key.target.tagName.toLowerCase()=='textarea')))return;if(key.srcElement&&((key.srcElement.tagName.toLowerCase()=='input')||(key.srcElement.tagName.toLowerCase()=='textarea')))return;if((key.metaKey)||(key.shiftKey)||(key.altKey)||(key.ctrlKey))modifiedKey=true;if(key.keyCode)key=key.keyCode;if(typeof section[0].offsetTop=='undefined')return;if(!modifiedKey){if((key==190)||(key==74))nextArticle();if((key==188)||(key==75))prevArticle();if(key==13){if(key.target&&(key.target.tagName.toLowerCase()=='a'))return;followPost();}
if(key==59)prevPage();}}
document.onkeydown=navkey;window.onload=getentries;
