Breadcrumbs (disable folder link)

I found a breadcrumbs script here - http://www.webhostingtalk.com/archive/index.php/t-521215.html

It works great but is there a way to disable a folder link so it just becomes text?

for example test site here - http://www.2020aec.com/About_Your_Eyes/Cataracts/test2.php

home > about your eyes > cataracts > test2.php

home = link
about your eyes = link
cataracts = DISABLE link feature and becomes plain text
test2 = title page (plain text)

This is the code that I am using -

http://www.2020aec.com/About_Your_Eyes/Cataracts/testcrumb2.js (same as below)

// Enter your domain name here,
var url = "www.2020aec.com";

// Enter the word you want to use to describe the home page of your site
var home = "Home";

// Enter the character(s) you want to use to separate your breadcrumbs
var divide = "»";

// Enter text you'd like to see. You can make this blank as well - "";
var pre = "";

// Enter the extension you use for your pages
var ext = ".php";

var sp = "_";

// Enter the default file name you use for the root file of your folders
var root = "index";

// Want to replace any folder names with custom names of your own?  Create
// replacement pairs in the following format: swap* = 'Old Words|New Words';
swap = new Array(); // Don't touch this line!
// Remove comments from swap array variables below to put them into use.
// Create additional replacement items by increasing the array number * as
// you add more lines.


swap[0] = 'index|';
swap[1] = 'Sitemap|';

//////////////////////////////////////////////////////////////////////////////
// DO NOT TOUCH ANYTHING BELOW THIS LINE //
// unless done in accordance with the instructions at the top of the page. //
//////////////////////////////////////////////////////////////////////////////

divide = " " + divide + " ";
var a = "" + window.location;
var b = "";
var bar = divide + root;
var code = "";
var foo = root + ext;
var left = "";

a = a.replace(ext,"");
left = a.lastIndexOf("/");

if (a.substring(a.lastIndexOf("/")) == "/") {
a = a + root;
}

b = a.substring(left+1);
b = b.replace(/_/g," ");
b = b.replace(/#/g,divide);

// Alternative spacer: hyphen. Remove comment tags in the next line to activate
// b = b.replace(/-/g," ");

code = divide + b;
b = "/" + b
b = b.replace(divide,"#");
b = b.replace(/ /g,"_");

// Alternative spacer: hyphen. Remove comment tags in the next line to activate
// b = b.replace(/ /g,"-");

a = a.replace(b,"");

if (a.substring(left-1) != "/") {
do {
left = a.lastIndexOf("/");
b = a.substring(left+1);
b = b.replace(/_/g," ");

// Alternative spacer: hyphen. Remove comment tags in the next line to activate
// b = b.replace(/-/g," ");

code = divide + "<a href=\"" + foo + "\">" + b + "</a>" + code;
foo = "../" + foo;
b = "/" + b;
b = b.replace(/ /g,"_");

// Alternative spacer: hyphen. Remove comment tags in the next line to activate
// b = b.replace(/ /g,"-");

a = a.replace(b,"");
} while (a.substring(left-1) != "/");
}

code = code.replace(url,home);
code = code.replace(bar,"");
code = (code.substring(code.indexOf("<")));
code = pre + code;
document.getElementById('breadcrumbs').innerHTML = code;

any help would be greatly appreciated.