Modify the value for laravel 5.1 form input with javascript

I have it working with java script and html but when i use laravel forms it wont work

java script

  document.getElementById('user-image').setAttribute('value', res.path);

html:

<input  id="user-image" value="">

with laravel form then i cant seem to get it to change the value

{!! Form::hidden('user-image', '', array('id' => 'user-image')) !!}

via Chebli Mohamed