Use the button element:
<button type="submit">$ratingLine</button>
You should assign a class to the button
<input type="submit" value="$ratingLine" class="link-lookalike"/>
and in your css file (or inside a <style type="text/css"></style> tag) use
.link-lookalike {
    background: none;
    border: none;
    color: blue;
    text-decoration: underline;
    cursor: pointer;
}
this way you can assign the class to different buttons in your page (if required), and they will all get the same look.
You need to add a class, for example "submitClass".
<input type="submit" value="$ratingLine" class="submitClass"/>
   .submitClass {
        background: none;    
        border: none;    
        color: blue;    
        text-decoration: underline;    
        cursor: pointer;
   }
<style type="text/css">
form input[type="submit"]{
    background: none;
    border: none;
    color: blue;
    text-decoration: underline;
    cursor: pointer;
}
</style>
Is this not what you're looking for?
The other option, as already noted, is to use javascript to submit the form onclick of a anchor element:
<a href="#" onclick="document.review.submit()">submit</a>       
with your form having an attribute: name="review"
Here's how I did it with html and css:
<p><form class='input-to-link-form'><input type="submit" value="Place your order" class="input-to-link"></form> and make payment.</p>
.input-to-link {
  margin: 0;
  padding: 0;
  color: #0088cc;
  text-decoration: none;
  font-weight: 300;
  cursor: pointer;
  background: none;
  border: none;
}
.input-to-link-form {
  margin: 0 4px 0 0;
  padding: 0;
  float: left;
}