USER:SCOTT.WHEELER RELATEDARTICLES.JS

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Documentation for this user script can be added at User:Scott.wheeler/relatedarticles.

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function JSONP(url)

{

    this.url = url; 

    this.headTag = document.getElementsByTagName("head").item(0);

    this.scriptId = 'JscriptId' + JSONP.scriptCounter++;

}



JSONP.scriptCounter = 1;



JSONP.prototype.buildScriptTag = function ()

{

    this.script = document.createElement("script");

    this.script.setAttribute("type", "text/javascript");

    this.script.setAttribute("charset", "utf-8");

    this.script.setAttribute("src", this.url);

    this.script.setAttribute("id", this.scriptId);

}

 

JSONP.prototype.removeScriptTag = function ()

{

    this.headTag.removeChild(this.script);  

}



JSONP.prototype.addScriptTag = function ()

{

    this.headTag.appendChild(this.script);

}



var RelatedArticles =

{

    titles: null

}



RelatedArticles.fetch = function()

{

    if(mw.config.get('wgPageName').indexOf(":") >= 0 || mw.config.get('wgPageName') == "Main_Page")

    {

        return;

    }



    var url = "http://pedia.directededge.com/api.fcgi" +

   	      "?format=json&jsonp=RelatedArticles.callback&topic=" + encodeURI(mw.config.get('wgPageName'));



    var request = new JSONP(url);



    request.buildScriptTag();

    request.addScriptTag();

}



RelatedArticles.callback = function(titles)

{

    RelatedArticles.titles = titles;



    if(window.addEventListener)

    {

	window.addEventListener("load", RelatedArticles.insert, false);

    }

    else if(window.attachEvent)

    {

	window.attachEvent("onload", RelatedArticles.insert);

    }

    else

    {

	throw "No event to attach to.";

    }

}



RelatedArticles.insert = function()

{

    var column = document.getElementById("column-one");

    var search = document.getElementById("p-search");



    if(!column || !search)

    {

	throw "Could not find column and search elements.";

    }



    var related = document.createElement("div");

    related.setAttribute("class", "portlet");

    column.insertBefore(related, search);



    var label = document.createElement("h5");

    label.appendChild(document.createTextNode("related articles"));

    related.appendChild(label);



    var pBody = document.createElement("div");

    pBody.setAttribute("class", "pBody");

    related.appendChild(pBody);



    var list = document.createElement("ul");

    pBody.appendChild(list);



    var prefix = "http://en.wikipedia.org/wiki/";



    for(var i = 0; i < RelatedArticles.titles.length; i++)

    {

	var li = document.createElement("li");

	list.appendChild(li);



	var link = document.createElement("a");

	li.appendChild(link);



	link.setAttribute("href", prefix + escape(RelatedArticles.titlesi]));

	link.appendChild(document.createTextNode(RelatedArticles.titlesi]));

    }

}



RelatedArticles.fetch();

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