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h2-- / Textbook Citation Footnote-ifier

// ==UserScript==
// @name         Textbook Citation Footnote-ifier
// @namespace    http://your.homepage/
// @version      0.3
// @description  Script to convert in-text citations into footnotes, making it more readable
// @author       h2
// @match        https://gpc.view.usg.edu/content/enforced/730176*
// @grant        none
// ==/UserScript==

var footnotes = document.getElementsByClassName('footnote');                    // make an array of all footnotes in document
for (var i=footnotes.length; --i>=0;) { 					                    // run a loop iterating over each instance of a footnote appearing
	var note = footnotes[i].innerHTML; 				  	                        //make a text copy of the current footnote html, will use it to be mouseover text later
    note.replace(); 										                    //figure out some magic regexp and put it here later, to parse string for stupid html tags and purge them
    var icon = new Image(16, 16);							                    //make a footnote icon to replace the in-text citations with later
	icon.src = 'http://web.mit.edu/ghudson/dev/nokrb/third/gnome-icon-theme/16x16/stock/text/stock_insert_footnote.png';
    var enhancedNote = document.createElement('span');		                    //make supernote, start bringing it all together
    enhancedNote.setAttribute ('title', note);
    enhancedNote.appendChild (icon);
    footnotes[i].parentNode.replaceChild(enhancedNote, footnotes[i]);			// replace ugly in-text citation with enhanced footnote icon that uses old footnote as it's mouseover text
}