input type=file change text

<!-- HTML -->

<div class="file-attach">
  <div class="attach-link">Прикрепить файл</div>
  <div class="file-name">Выберите файл</div>
  <input type="file" name="attachmentFile">
</div>

<!-- CSS -->

.file-attach {
	height: 50px;
	display: block;
	margin-left: auto;
	margin-right: auto;
	width: 100%;
	text-align: center;
	position: relative;
}

.attach-link {
	display: block;
	font-size: 20px;
	text-decoration: underline;
	color: #ffffff;
	width: 100%;
	top: -3px;
	text-align: center;
	position: absolute;
	cursor: pointer;
}

.file-attach .file-name {
	text-overflow: ellipsis;
	overflow: hidden;
	position: absolute;
	top: 26px;
	width: 100%;
	font-size: 16px;
	color: #ffffff;
}

.file-attach input[type='file'] {
	opacity: 0;
	height: 48px;
	position: absolute;
	top: -22px;
	left: 0;
	right: 0;
	width: 100%;
	cursor: pointer;
}

<!-- Javascript -->

$('form input[type=file]').change(function () {
    var file_name = this.value.replace(/\\/g, '/').replace(/.*\//, '');
    $(this).parent(".file-attach").find('.file-name').text(file_name);
});