var files = document.getElementById('myfiles').files
  var eav = {};
  console.log(files.length + " Files")
  for(var i = 0; i < files.length; i++){ 
      var c = { 
                name : files[i].name, 
                size : files[i].size, 
                type : files[i].type ? files[i].type : 'application/octet-stream', 
                binary : files[i] 
              }
      eav[files[i].name] = c;
  }
  console.log(eav)
  var content = bSerialize.eav2bin(eav);

  var xhr = new XMLHttpRequest();
  xhr.open('POST','pl/upload.pl');
  xhr.onload = function(){
      console.log("response:");
      console.log( this.response );
  };
  var progressBar = document.querySelector('progress');
  xhr.upload.onprogress = function(e) {
      console.log(e); 
      if (e.lengthComputable) {
          progressBar.value = (e.loaded / e.total) * 100;
      }
  };
  xhr.send( content );
  console.log("content:");
  console.log(content);