SB/SV/QQ Thread-Starter Highlighter

This is a userscript which highlights subsequent posts by the thread-starter in the SpaceBattles, Sufficient Velocity and Questionable Questing forums. It also displays a short information at the top of each page if a post by the thread-starter can be found on the current page.
当前为 2015-05-30 提交的版本，查看最新版本。
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// ==UserScript==
// @name  SB/SV/QQ Thread-Starter Highlighter
// @namespace  http://userscripts.org:8080/users/196962
// @description This is a userscript which highlights subsequent posts by the thread-starter in the SpaceBattles, Sufficient Velocity and Questionable Questing forums. It also displays a short information at the top of each page if a post by the thread-starter can be found on the current page.
// @author  ElDani
// @contributor ApatheticImagination
// @version  1.1
// @license  Creative Commons BY-NC-SA
// @include  http*://forums.sufficientvelocity.com/threads/*
// @include  http*://forums.spacebattles.com/threads/*
// @include  http*://forum.questionablequesting.com/threads/*
// @encoding  utf-8
// @grant  none
// @history  1.0.6 added HTTPS support for SB and full support for Questionable Questing forum (ApatheticImagination) 
// @history  1.0.5 added HTTPS support for SV (thanks NuitTombee)
// @history  1.0.4 fixed small bug, where wrong posts could be highlighted due to error in partial user name matching
// @history  1.0.3 added support for SV FlexileSpace style
// @history  1.0.2 fixed bug, where posts by staff on SB would not be highlighted
// @history  1.0.1 added option to choose highlight color by active forum style
// @history  1.0 initial public version
// ==/UserScript==

function LocalMain () {
   if (window.top != window.self) {
     //don't run on iFrames
     return;
   }

   var site = -1;
   if (document.URL.indexOf("spacebattles.com") > -1) site=0;
   if (document.URL.indexOf("sufficientvelocity.com") > -1) site=1;
   if (document.URL.indexOf("questionablequesting.com") > -1) site=2;
   if (site == -1) return;
   
   var style;
   var rgxp_style = /<link.*?href="css.php\?css=xenforo,form,public&amp;style=(\d+)&amp;/i
   var match = rgxp_style.exec(document.documentElement.outerHTML);
   if (match != null) {
     style = match[1];
   } else {
     return;
   }
   
   var highlightColor = new Array();
   highlightColor[0] = new Array();
   highlightColor[0][2]  = "#152E18"; // SB: SpaceBattles.com
   highlightColor[0][4]  = "#152E18"; // SB: Flexile Dark Standalone
   highlightColor[0][6]  = "#F5F6CE"; // SB: XenForo Default Style
   highlightColor[1] = new Array();
   highlightColor[1][1]  = "#F5F6CE"; // SV: Default Style
   highlightColor[1][2]  = "#152E18"; // SV: Flexile Dark
   highlightColor[1][3]  = "#152E18"; // SV: Flexile Gold
   highlightColor[1][5]  = "#152E18"; // SV: Dark Wide
   highlightColor[1][6]  = "#152E18"; // SV: Gold Fixed
   highlightColor[1][7]  = "#424242"; // SV: Space
   highlightColor[1][11] = "#152E18"; // SV: FlexileSpace
   highlightColor[2] = new Array();
   highlightColor[2][1]  = "#F5F6CE"; // QQ: XenForo Default Style
   highlightColor[2][2]  = "#152E18"; // QQ: Blackend
   highlightColor[2][3]  = "#152E18"; // QQ: Blackend-Blue
   highlightColor[2][4]  = "#152E18"; // QQ: Blackend-Green
   highlightColor[2][5]  = "#152E18"; // QQ: Blackend-Purple
   highlightColor[2][8]  = "#152E18"; // QQ: Flexile Dark
   highlightColor[2][9]  = "#152E18"; // QQ: Dark Responsive (Green)
   highlightColor[2][10] = "#152E18"; // QQ: Dark Responsive High Contrast
   highlightColor[2][14] = "#F5F6CE"; // QQ: Light Responsive
   highlightColor[2][18] = "#152E18"; // QQ: UI.X Dark
   highlightColor[2][20] = "#152E18"; // QQ: UI.X Dark (Mobile)
   highlightColor[2][21] = "#F5F6CE"; // QQ: UI.X Light
   
   
   var starter;
   var rgxp_starter = /started by <a href="(.*?)" class="username".*?>(.*?)<\/a>/i
   var match = rgxp_starter.exec(document.documentElement.outerHTML);
   if (match != null) {
     starter = match[2];
   } else {
     return;
   }

   var messageList = document.getElementsByClassName("messageList");
   var messages = messageList[0].getElementsByTagName("LI");
   var nr_messages = messages.length;
   var username;
   var starter_posts = 0;
   for(var i=0; i<nr_messages; i++) {
     username = messages[i].getElementsByClassName("username");
     if(username[0] && (starter == username[0].innerHTML || username[0].innerHTML.indexOf('>'+starter+'<') > -1)) {
       messages[i].style.backgroundColor=highlightColor[site][style];
       messages[i].getElementsByClassName("primaryContent")[0].style.backgroundColor=highlightColor[site][style];
       if(messages[i].getElementsByClassName("secondaryContent").length>0) {
         messages[i].getElementsByClassName("secondaryContent")[0].style.backgroundColor=highlightColor[site][style];
       }
       starter_posts++;
     }
   }

   var add_html = document.getElementById("pageDescription").innerHTML;
   if(starter_posts>0) {
     add_html = add_html+" <strong>"+starter_posts+"</strong> post(s) by thread starter on this page!";
   } else {
     add_html = add_html+" No posts by thread starter on this page.";
   }
   document.getElementById("pageDescription").innerHTML = add_html;
}

window.addEventListener ("load", LocalMain, false);