/*****
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/
*****/
var crumbsep = " > ";
var precrumb = "<li>";
var postcrumb = "</li>";
var sectionsep = "/";
var rootpath = "/~research"; // Use "/" for root of domain.
var tilda = "%7E";
var rootname = "Home";
var altroot = "cuhs.harvard.edu"

var ucfirst = 1; // if set to 1, makes "directory" default to "Directory"
var showpage = document.title; 

var objurl = new Object;
objurl['quick_links'] = 'Quick Links';
objurl['managing_your_research'] = 'Managing Your Research';
objurl['greybook'] = 'The Grey Book';
objurl['effort'] = 'Effort Reporting and Salary Certification';
objurl['hum_sub'] = 'Use of Human Subjects in Research';
objurl['controlled_substances'] = 'Guide for Use of Controlled Substances'

// Grab the page's url and break it up into directory pieces

var pageurl = (new String(document.location));
// Check for %7E tilda syntax and replace
pageurl = pageurl.replace(tilda, "~");
// Check for cuhs.harvard.edu domain
pageurl= pageurl.replace(altroot, "fas.harvard.edu/~research/hum_sub");
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 + "<a href=\"" + currenturl + "/index.html\">" + 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)
    {
      displayname = page_ar[i].charAt(0).toUpperCase() + page_ar[i].substring(1);
    }
    else
    {
      displayname = page_ar[i];
    }
  }
  allbread += precrumb + crumbsep + "<a href=\"" + currenturl + "/index.html\">" + displayname + "</a>" + postcrumb;
}

thispage = page_ar[page_ar.length-1];

if ((showpage != "") && (thispage != 'index.html'))
{
  allbread += precrumb + crumbsep + showpage + postcrumb;
}

document.write("<div id='breadcrumbs'> <ul>");
document.write(allbread);
document.write("</ul> </div>");