/*------------------------------------------------------------------------------
Function:       footnoteLinks()
Author:         Aaron Gustafson (aaron at easy-designs dot net)
Creation Date:  8 May 2005
Version:        1.3.3
Homepage:       http://www.easy-designs.net/code/footnoteLinks/
License:        Creative Commons Attribution-ShareAlike 2.0 License
                http://creativecommons.org/licenses/by-sa/2.0/
Note:           If you change or improve on this script, please let us know by 
                emailing the author (above) with a link to your demo page.
------------------------------------------------------------------------------
April 2006 - Liana Thomas
* Changed footnoteLinks to take an array of IDs to traverse.
* Made a fix so that in IE images aren't counted. (checks that the 'href' and 'src' attribute are 
	not equal which works because 'src' won't be set for non-image link tags)
* Changed classes from .printOnly to printonly and .ignore to .ignore-footnotes
------------------------------------------------------------------------------*/
function footnoteLinks(containerIDs,targetID) { 
	if (!document.getElementById || !document.getElementsByTagName || !document.createElement) return false; 
	
	var target = document.getElementById(targetID); 
	var h2 = document.createElement('h2'); 
	addClass.apply(h2,['printonly']); 
	var h2_txt = document.createTextNode('Links'); 
	h2.appendChild(h2_txt); 
	var ol = document.createElement('ol'); 
	addClass.apply(ol,['printonly']); 
	var num = 1;	
	var myArr = []; 
	
	for (z = 0;z < containerIDs.length;z++){
		if (!document.getElementById(containerIDs[z]) || !document.getElementById(targetID)) return false; 

		var container = document.getElementById(containerIDs[z]); 
		var coll = container.getElementsByTagName('*'); 		
		var thisLink; 		 

		for (var i=0; i<coll.length; i++) { 
			var thisClass = coll[i].className; 

			if ( ((coll[i].getAttribute('href') && coll[i].getAttribute('src') != coll[i].getAttribute('href')) || coll[i].getAttribute('cite')) 
				&& (thisClass == '' || thisClass.indexOf('ignore-footnotes') == -1)) { 
				thisLink = coll[i].getAttribute('href') ? coll[i].href : coll[i].cite; 
				var note = document.createElement('sup'); 
				addClass.apply(note,['printonly']); 
				var note_txt; 
				var j = inArray.apply(myArr,[thisLink]); 
				if ( j || j===0 ) { 
					note_txt = document.createTextNode(j+1);
				} else { 
					var li = document.createElement('li'); 
					var li_txt = document.createTextNode(thisLink); 
					li.appendChild(li_txt); 
					ol.appendChild(li); 
					myArr.push(thisLink); 
					note_txt = document.createTextNode(num); 
					num++;
				} 
				note.appendChild(note_txt); 
				if (coll[i].tagName.toLowerCase() == 'blockquote') { 
					var lastChild = lastChildContainingText.apply(coll[i]); 
					lastChild.appendChild(note);
				} else { 
					coll[i].parentNode.insertBefore(note, coll[i].nextSibling);
				} 
			} 
		} 
	}
	target.appendChild(h2); 
	target.appendChild(ol); 
	addClass.apply(document.getElementsByTagName('html')[0],['noted']); 
	return true;
}

window.onload = function() {
	ids = new Array("content");
  	footnoteLinks(ids,'print-links');
}

/*------------------------------------------------------------------------------
Excerpts from the jsUtilities Library
Version:2.1
Homepage:   http://www.easy-designs.net/code/jsUtilities/
License:Creative Commons Attribution-ShareAlike 2.0 License
http://creativecommons.org/licenses/by-sa/2.0/
Note:   If you change or improve on this script, please let us know.
------------------------------------------------------------------------------*/
if(Array.prototype.push == null) {
  Array.prototype.push = function(item) {
this[this.length] = item;
return this.length;
  };
};
// ---------------------------------------------------------------------
//  function.apply (if unsupported)
//   Courtesy of Aaron Boodman - http://youngpup.net
// ---------------------------------------------------------------------
if (!Function.prototype.apply) {
  Function.prototype.apply = function(oScope, args) {
var sarg = [];
var rtrn, call;
if (!oScope) oScope = window;
if (!args) args = [];
for (var i = 0; i < args.length; i++) {
  sarg[i] = "args["+i+"]";
};
call = "oScope.__applyTemp__(" + sarg.join(",") + ");";
oScope.__applyTemp__ = this;
rtrn = eval(call);
oScope.__applyTemp__ = null;
	return rtrn;
  };
};
function inArray(needle) {
  for (var i=0; i < this.length; i++) {
if (this[i] === needle) {
  return i;
}
  }
  return false;
}
function addClass(theClass) {
  if (this.className != '') {
this.className += ' ' + theClass;
  } else {
this.className = theClass;
  }
}
function lastChildContainingText() {
  var testChild = this.lastChild;
  var contentCntnr = ['p','li','dd'];
  while (testChild.nodeType != 1) {
testChild = testChild.previousSibling;
  } 
  var tag = testChild.tagName.toLowerCase();
  var tagInArr = inArray.apply(contentCntnr, [tag]);
  if (!tagInArr && tagInArr!==0) {
testChild = lastChildContainingText.apply(testChild);
  }
  return testChild;
}