MediaWiki:Common.js

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function loadsearchstuff() {
  // If you're reading this, I'm sorry. Messy code lies ahead.

  if (document.implementation && document.implementation.createDocument)
       xmlDoc=document.implementation.createDocument("","",null);
  else 
       xmlDoc=new ActiveXObject("Microsoft.XMLDOM");

  xmlDoc.async=false;
  xmlDoc.load("/index.php?title=Template:Searchicons&action=raw");

  // Establishing the various fragments of the search box.
  var randindex = Math.floor(Math.random()*xmlDoc.getElementsByTagName("item").length);
  var searchicon = "<a href='/wiki/" + xmlDoc.getElementsByTagName("name")[randindex].childNodes[0].nodeValue + "'><img src='" + xmlDoc.getElementsByTagName("url")[randindex].childNodes[0].nodeValue + "' style='margin-left: -16px; margin-top:-6px;' /></a>";
  var searchbox = document.getElementById('searchBody');
  var advancedsearchfields = '<div style="width: 80px; text-align: left; font-size: 84%; padding:0; margin:0;"><input type="checkbox" name="all" />All<br /><input type="checkbox" name="categories" />Categories<br /><input type="checkbox" name="templates" />Templates<br /><input type="checkbox" name="talk" />Talk pages</div>';

  // Throwing all the various fragments together.
  searchbox.innerHTML = searchicon + '<form id="searchform" name="searchform"><input type="image" src="http://images.wikia.com/transformers/images/e/e3/Go.png" name="go" class="searchButton" id="searchGoButton" value="Go" style="float: right; margin: 0; padding: 0;" onclick="return advancedsearch(false)" /><input id="searchInput" name="search" type="text" title="Search Teletraan I [f]" accesskey="f" value="" style="width: 70%;" /><input type="image" src="http://images.wikia.com/transformers/images/9/95/Search.png" name="fulltext" class="searchButton" id="mw-searchButton" value="Search" style="float: right;" onclick="return advancedsearch(true)" />' + advancedsearchfields + '</form>';

  // Finally, removing the redundant "search" title at the top.
  searchbox.parentNode.removeChild(searchbox.parentNode.getElementsByTagName("h5")[0]);
}

function advancedsearch(fulltext) {
  // This is what drives the advanced search. The URL is rewritten, since the parameters
  // do not actually match what the form expects. This should be fixed if there's a better
  // way of doing it, and there probably is.

  var advancedform = document.realform;
  var searchform = document.searchform;
  advancedform.action = "/wiki/Special:Search";
  
  advancedform.action += "?search=" + searchform.search.value;
  
  if (fulltext)  advancedform.action += "&fulltext=Search";
  else advancedform.action += "&go=Go";

  if (searchform.all.checked || searchform.categories.checked || searchform.templates.checked || searchform.talk.checked) searchform.action += "&searchx=Search";
  // This parameter isn't normally passed in the searchbox, but it seems to
  // make the checkboxes retain their values on the advanced search page.

  if (searchform.all.checked)
     for (var i=0; i<15; i++) advancedform.action += "&ns" + i + "=1";
  else { // No need to look at the rest if "all" is checked
     if (searchform.categories.checked) advancedform.action += "&ns14=1";
     if (searchform.templates.checked) advancedform.action += "&ns10=1";
     if (searchform.talk.checked) advancedform.action += "&ns1=1&ns3=1&ns5=1&ns7=1&ns9=1&ns11=1&ns13=1&ns15=1";
  }

  advancedform.submit();

  return false;
}

addOnloadHook(loadsearchstuff);