console errors

Uncaught TypeError: Object http://localhost:3000/surveys/new# has no method 'prev'

script.js

function remove_fields(link) {
	$(link).prev("input[type=hidden]").val("1");
	$(link).closest(".fields").hide();
}

view.html

<p class="fields"> 
	<label for="survey_questions_attributes_0_answers_attributes_0_content">Answer</label> 
	<input id="survey_questions_attributes_0_answers_attributes_0_content" name="survey[questions_attributes][0][answers_attributes][0][content]" size="30" type="text" /> 
	<input id="survey_questions_attributes_0_answers_attributes_0__destroy" name="survey[questions_attributes][0][answers_attributes][0][_destroy]" type="hidden" value="false" /> 
	<a href="#" onclick="remove_fields(this); return false;">remove</a> 
</p>