handling file inputs via javascript

clearFileInput.js

function clearFileInput( id )
{
    var elem = document.getElementById( id );
    elem.parentNode.innerHTML = elem.parentNode.innerHTML;
}

getUploadSize

function getUploadSize(){
  var elem = document.getElementById("moreUploads");
  var size=0;
  for(i=0;i<elem.childElementCount;i++){
    if(elem.children[i].children[0].files[0] != null)
      size += elem.children[i].children[0].files[0].size;
  }
  return size;
};