// ==UserScript==
// @name		    AUTO DRFE
// @namespace	    thesickthsense@gmail.com
// @description	    Makes dailyrotten threads auto-update... refresh is obselete.
// @include			http://forums.dailyrotten.com/*
// @author			TSS
// ==/UserScript==
var xmlhttp,buffer='',append=false,updateTimer=0,updateSecs=0,updateAdj=30,pulseMod=0,pulseByte=0;
function postClick(evt){if (evt.target.className!='mess') return;evt.target.style.backgroundColor="#FFFFFF";this.removeEventListener("click", function (event) postClick(event),false);}
function update(){if (updateSecs<1){update_check();updateSecs=updateAdj;append=true;}else{updateSecs--;}}
function update_check(){
	var moded=xmlhttp_modified(document.location.href);
  if (moded!=pulseMod){
    buffer=xmlhttp_buffer(pulseByte,'',document.location.href);
    update_extract();
		buffer='';
    pulseMod=moded;
  }else{
    if (updateAdj<180) updateAdj=(updateAdj+15);
    updateSecs=updateAdj;}}
function update_extract(){
	var dA=0,dZ=0,dZ2=pulseByte;
	do{
		dA=buffer.indexOf("<div class=\"mess\">",dZ);
		if (dA!=-1){
			dZ=buffer.indexOf("</div>",dA);
			if (dZ!=-1){
				pulseByte=dZ2+dZ;
        if (append) update_append(buffer.substring(dA+18,dZ));
			}else{break;}
		}else{break;}
	}while ((dZ!=-1)&&(dZ>dA));
  updateAdj=30;
	updateSecs=updateAdj;}
function update_append(content){
	var post=document.createElement("div");
  post.className='mess';post.innerHTML=content;post.style.backgroundColor="#ECF1EF";
	post.addEventListener("click", function (event) postClick(event),false);
  anchordiv.parentNode.insertBefore(post,anchordiv);}
function xmlhttp_buffer(start,stop,url){xmlhttp.open("GET",url,false);xmlhttp.setRequestHeader("RANGE","bytes="+start+"-"+stop);xmlhttp.send(null);return xmlhttp.responseText;}
function xmlhttp_modified(url){xmlhttp.open("HEAD",url,false);xmlhttp.send("");return xmlhttp.getResponseHeader("Last-Modified");}
function main(){
	try{xmlhttp=new XMLHttpRequest;} catch (e) {return;}
	var divs=document.getElementsByTagName("div");
	if (divs.length<=3) return;
  anchordiv=divs[divs.length-2];
  var theClass=new Array();
  theClass=document.styleSheets[0].cssRules;
  theClass[12].style.display='block';
  theClass[12].style.overflow='hidden';
  theClass[12].style.width='705px';
  hsInt = setInterval(function(){update();},1000);}
window.addEventListener("load",main,false);