function spawn(expr,qty,reversed){
  var spawnee=[expr];
  for(s=1;s<qty;s++){
    spawnee[s]=expr+spawnee[s-1]
  }
  if(reversed){
    return spawnee.reverse()
  }else{
    return spawnee
  }
}
function generateTrail(divider){
  if(!divider) {divider=" : "}
  var m=location.toString(),h="";
  m=m.substring(m.indexOf("/")+1);
  m=m.split("/");
  var howmany=spawn("../",m.length,true);
  howmany[m.length]="index.htm";
  for(i=1;i<m.length-1;i++){
    h+=("<a href="+howmany[i+2]+">"+unescape( m[i]+"</a>"+divider))
  }
  h += document.title;
  return h
}