var homePage = "Home";
var sepChars = " > ";
var linkHome = "/";
var hideIndex = true;
var UToSpace = true;
var DToSpace = true;
var changeCaps = 3;
var hideExt = true;

function MPJSBackLinks() {

	var linkHTML = '';
	var thisURL = window.location + '';

	var urlPair = thisURL.split('//');
	if (urlPair.length > 1) thisURL = urlPair[1];

	var dirArray = thisURL.split('/');
	var linkArray = dirArray.slice(1);
	var linkDir = '/';
	var currentPage = '';

	if (linkHome != '' && linkHome != '/') {
		var thisTest = linkHome.split('//');
		if (thisTest.length > 1) linkHome = thisTest[1];
		startArray = linkHome.split('/');
		var backCount = 0;
		for (var n=0; n<startArray.length; n++) {
			if (startArray[n] == '..') backCount++;
			else break;
		}
		if (backCount > 0) {
			var part1 = dirArray.slice(0, (dirArray.length - backCount - 1));
			var part2 = startArray.slice(backCount);
			startArray = part1.concat(part2);
		} else {
			var newStart = new Array(dirArray[0]);
			for (var n=1; n<startArray.length; n++) {
				var thisTest = (typeof dirArray[n] != "undefined") ? dirArray[n] : false;
				if (thisTest && thisTest == startArray[n]) newStart[n] = startArray[n];
				else break;
			}
			startArray = newStart;
		}
		if (startArray.length > 1) {
			var lastOne = startArray[startArray.length - 1];
			if (lastOne != '') {
				var thisTest = lastOne.split('.');
				if (thisTest.length > 1) startArray[startArray.length - 1] = '';
				else startArray[startArray.length] = '';
			}
			if (homePage == '') homePage = startArray[startArray.length-2];
			linkArray = dirArray.slice(startArray.length - 1);
			if (startArray[0] != '') startArray[0] = "http://"+startArray[0];
			linkDir = startArray.join('/');
		} else linkArray = dirArray.slice(1);
	} else {
		linkArray = dirArray.slice(1);
		if (homePage == '') homePage = dirArray[0];
	}
	var backTrack = 1;
	if (linkArray[linkArray.length - 1] != '') {
		var lastOne = linkArray[linkArray.length - 1];
		var testName = lastOne.split('.');
		if (testName[0] == 'index' || testName[0] == 'default') {
			backTrack = 2;
			currentPage = linkArray[linkArray.length - 2];
		} else if (hideExt) currentPage = testName[0]
		else currentPage = lastOne;
	} else {
		backTrack = 2;
		currentPage = linkArray[linkArray.length - 2];
	}
	var html = '';
	if (linkArray.length >= backTrack) {
		linkArray = linkArray.slice(0, linkArray.length - backTrack);
		var links = new Array();
		if (homePage != '') {
			homePage = MPBCParseText(homePage, UToSpace, DToSpace, changeCaps);
			links[links.length] = '<a class="blue" href="'+linkDir+'">'+homePage+'</a>';
		}
		var baseDir = linkDir;
		for (var n=0; n<linkArray.length; n++) {
			baseDir += linkArray[n] + '/';
			var thisText = MPBCParseText(linkArray[n], UToSpace, DToSpace, changeCaps);
			links[links.length] = '<a href="'+baseDir+'">'+thisText+'</a>';
		}
		if (currentPage != '') links[links.length] = MPBCParseText(currentPage, UToSpace, DToSpace, changeCaps);
		html = '<!--div class="mp_backlinks"-->'+links.join(sepChars)+'&nbsp;&nbsp;<!--\/div-->';
	}
	return html;
}

// parse string through text filters
function MPBCParseText(thisText, UToSpace, DToSpace, changeCaps) {

	if (typeof thisText != "undefined" && thisText) {
		if (DToSpace) thisText = MPBCReplaceChar('-', ' ', thisText);
		if (UToSpace) thisText = MPBCReplaceChar('_', ' ', thisText);
		if (changeCaps) thisText = MPBCFixCaps(thisText, changeCaps);
	} else thisText = '';
	return thisText;
}

// find and replace single character in string...
function MPBCReplaceChar(oldChar, newChar, thisString) {

	var newString = '';

	for (var n=0; n<thisString.length; n++) {
		newString += (thisString.charAt(n) == oldChar) ? newChar : thisString.charAt(n);
	}
	return newString;
}

// determine changes in capitalization...
function MPBCFixCaps(thisString, changeCaps) {

	if (changeCaps == 1) thisString = MPBCUCWords(thisString);
	else if (changeCaps == 2) thisString = thisString.toUpperCase();
	else if (changeCaps == 3) thisString = thisString.toLowerCase();
	return thisString;
}

// capitalize the first letter of every word...
function MPBCUCWords(thisString) {

	var thisArray = thisString.split(' ');
	var newString = '';
	for (var n=0; n<thisArray.length; n++) {
		var firstChar = thisArray[n].charAt(0).toUpperCase();
		var theRest = thisArray[n].substring(1, thisArray[n].length);
		newString += firstChar+theRest+' ';
	}
	return newString.substring(0, newString.length - 1);
}

document.write(MPJSBackLinks());