title: What is the purpose of the `name` attribute in a checkbox input element?
body: <p>I went through many online documents for the checkbox input in XHTML. Can anyone clear my doubt? What does this <code>name</code> field actually stand for? </p>
  
  <pre><code>Milk: &lt;input type="checkbox" name="checkbox" value="Milk"&gt;
  Chocolate: &lt;input type="checkbox" name="checkbox" value="chocolate"&gt;
  Cold Drink: &lt;input type="checkbox" name="checkbox" value="Cold Drink"&gt;
  </code></pre>
  
  <p>I thought it was an identifier for that particular checkbox, which can later be used in other file by just referring their name, but given that all the checkbox had same name, why even specify it? A little confused of this.</p>