/*****
Dynamic Javascript Breadcrumb Navigation by Adam DuVander
http://duvinci.com/projects/javascript/crumbs/

Released under Creative Commons License:
http://creativecommons.org/licenses/by/2.5/
*****/
function generate_breadcrumb() {
var crumbsep = " >> ";
var precrumb = "<span class=\"crumb\">";
var postcrumb = "</span>";
var sectionsep = "/";
var rootpath = "/research/hci/"; // Use "/" for root of domain.
var rootname = "HCI Research";
var baseCrumb = "<a href=\"http://www.auckland.ac.nz/\">University of Auckland</a> >> <a href=\"http://www.cs.auckland.ac.nz/\">Department of Computer Science</a> >> <a href=\"https://wiki.auckland.ac.nz/display/SERG/Welcome+to+SERG\">SERG</a> >>";
var ucfirst = 1; // if set to 1, makes "directory" default to "Directory"

var objurl = new Object;
objurl['vi_tools'] = 'Tools for Visually Impaired';
objurl['pen_marked'] = 'PenMarked';
objurl['multi_touch']= 'Multi Touch Screen';


// Grab the page's url and break it up into directory pieces
var pageurl = (new String(document.location));
var protocol = pageurl.substring(0, pageurl.indexOf("//") + 2);
pageurl = pageurl.replace(protocol, ""); // remove protocol from pageurl
var rooturl = pageurl.substring(0, pageurl.indexOf(rootpath) + rootpath.length); // find rooturl
if (rooturl.charAt(rooturl.length - 1) == "/") //remove trailing slash
{
  rooturl = rooturl.substring(0, rooturl.length - 1);
}
pageurl = pageurl.replace(rooturl, ""); // remove rooturl fro pageurl
if (pageurl.charAt(0) == '/') // remove beginning slash
{
  pageurl = pageurl.substring(1, pageurl.length);
}

var page_ar = pageurl.split(sectionsep);
var currenturl = protocol + rooturl;
var allbread = precrumb + baseCrumb + "<a href=\"" + currenturl + "\">" + rootname + "</a>" + postcrumb; // start with root

for (i=0; i < page_ar.length-1; i++)
{
  var displayname = "";
  currenturl += "/" + page_ar[i];
  if (objurl[page_ar[i]])
  {
   displayname = objurl[page_ar[i]];
  }
  else
  {
    if (ucfirst == 1)
    {
	var str = page_ar[i].replace('_',' ');
	if (str.indexOf(' ') != -1) {
	displayname = str.charAt(0).toUpperCase() +str.substring(1, str.indexOf(' ')+1);
	} else {
	displayname = str.charAt(0).toUpperCase() +str.substring(1);
	}
	var space = 0;
	while(str.indexOf(' ',space) != -1) {
	 space = str.indexOf(' ',space);
      displayname += str.charAt(space+1).toUpperCase() + str.substring(space+2);
	  space++;
	  }
    }
    else
    {
      displayname = page_ar[i];
    }
  }
  allbread += crumbsep + precrumb + "<a href=\"" + currenturl + "\">" + displayname + "</a>" + postcrumb;
}
var urlString = document.location.toString();
if((urlString.lastIndexOf(".") > urlString.lastIndexOf("/")) && (urlString.substring(urlString.lastIndexOf("/")+1,urlString.lastIndexOf(".")) != "index")) {
allbread += crumbsep + precrumb + "<a href=\"" + document.location + "\">" + document.title.replace("HCI Lab - ", "") + "</a>" + postcrumb;
}

document.getElementById('breadcrumb').innerHTML = allbread;
}