I'm new to javascript. I found this code for breadcrumbs that i like and need help in changing it to add a space before a capital.

Why?
The directories on my site are called thing like root/MyFirstDir/MySecondDir/etc...

I want the breadcrumb trail to then display it like root > My First Dir > My Second Dir > etc...

Here's my code:

Code:
function breadcrumbs() {
  sURL = new String;
  bits = new Object;
  var x = 0;
  var stop = 0;
  var output = "<div class=topnav><a href=/>Home</a> &nbsp;>&nbsp; ";

  sURL = location.href;
  sURL = sURL.slice(8,sURL.length);
  chunkStart = sURL.indexOf("/");
  sURL = sURL.slice(chunkStart+1,sURL.length)

  while(!stop){
    chunkStart = sURL.indexOf("/");
    if (chunkStart != -1){
      bits[x] = sURL.slice(0,chunkStart)
      sURL = sURL.slice(chunkStart+1,sURL.length);
    } else {
      stop = 1;
    }
    x++;
  }



  for(var i in bits){
    output += "<a href=\"";
    for(y=1;y<x-i;y++){
      output += "../";
    }
    output += bits[i] + "/\">" + bits[i] + "</a> &nbsp;>&nbsp; ";
  }
  document.write(output + document.title);
  document.write("</div>");
  }
if anyone could give me the code / advise me / whatever, I would be most obliged.

Thanks

~Bionic_25