Using FormData that works in internet explorer and file upload !

FormData.js

var IEFormData = new FormData();
$divForm.find('input[name], textarea[name]')
 .each(function(i, el) {
    var val = $(el).val();
      if (!val) {
        return;
      }

      if (el.type && el.type === 'file') {
        for (var i = 0; i < el.files.length; i++) {
          var file = el.files[i];
            if (file.name !== '') {
              IEFormData.append(el.name, file);
            }
          }
        } else {
          IEFormData.append(el.name, $(el).val());    
     }
});