title: jquery custom selector with colon
body: <p>I need a function to select all elements with a custom attribute, and take its name and value. for example:</p>
  
  <pre><code>&lt;input type="text" my:name="koni" my:age="20" my:city="New York" /&gt;
  </code></pre>
  
  <p>Note that my is always the same, but that behind not. in my function i then want to say:</p>
  
  <pre><code>var attr = //here should be the attribute (attr, or attr2)
  </code></pre>
  
  <p>and</p>
  
  <pre><code>var value = //here should be the value (test, or hello)
  </code></pre>
  
  <p>how can i make that?</p>
  
  <p>Edit: sorry, forgot to paste the html.</p>
  
  <p>i want to loop throu each input that has such custom my attributes, and get the value and the key in an array. for this example, i should have:</p>
  
  <p>key = name,
  value = koni</p>
  
  <p>and</p>
  
  <p>key = age,
  value = 20</p>
  
  <p>...</p>