wfShowOrHide

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<label>
What Are You Looking To Finance :<select name="item" required="">
<option value="snowmobile">Snowmobile</option>
<option value="automobile">Car/Truck/Suv</option>
<option value="boat">Boat/Marine</option>
<option value="atv">ATV, Side by Side, Off-Road</option>
<option value="trailer">Recreationa/Trailer/RV</option>
<option value="computer">Electronic/TV/Computer</option>
<option value="other">Other</option>
</select>
</label>

<div id="itemother">
<label>
Please Describe Item :
<input type="text" name="itemother" placeholder="Enter Description and Value" />
</label>
</div>

CSS

#itemother {
display: none;
}

JavaScript

$('select').change(function(){
  if ($('select[name=item]').val() == 'other'){
    $('#itemother').show();
  }else{
    $('#itemother').hide();
  }
});