image.js

function readURL(input) {
if (input.files && input.files[0]) {

  var reader = new FileReader();

  reader.onload = function(e) {
    $('.image-upload-wrap').hide();

    $('.file-upload-image').attr('src', e.target.result);
    $('.file-upload-content').show();

    $('.image-title').html(input.files[0].name);
  };

  reader.readAsDataURL(input.files[0]);

} else {
  removeUpload();
}
}

function removeUpload() {
$('.file-upload-input').replaceWith($('.file-upload-input').clone());
$('.file-upload-content').hide();
$('.image-upload-wrap').show();
}
$('.image-upload-wrap').bind('dragover', function () {
  $('.image-upload-wrap').addClass('image-dropping');
});
$('.image-upload-wrap').bind('dragleave', function () {
  $('.image-upload-wrap').removeClass('image-dropping');
});