<script language="javascript">
function uploadAndSubmit() 
{ 
 var form = document.forms["uploadForm"]; 
     
 if (form["file"].files.length > 0) 
 { 
  var file = form["file"].files[0]; 
  var reader = new FileReader(); 
   
  reader.onloadend = function() { 
   var xhr = new XMLHttpRequest(); 
   xhr.open("POST", "testJsUpload.php"); 
   xhr.overrideMimeType("application/octet-stream"); 
   xhr.sendAsBinary(reader.result); 
  } 
  reader.readAsBinaryString(file); 
 } 
 else
 { 
  alert ("Please choose a file."); 
 }  
} 
</script>
<form action="javascript: uploadAndSubmit();" enctype="multipart/form-data" id="uploadForm" method="post" name="uploadForm">Upload File: <input name="file" type="file"> 
  <input value="Submit" type="submit">
</form>