title: Draw circle from html input values
body: <p>Here is my code: </p>
  
  <pre><code>$(function () {
   drawCircle(150,150,100,'canvas');
  
   $('#radius').change(function(){
    $('#rVal').text($(this).val());
   });
  
   $('#x').change(function(){
    $('#xVal').text($(this).val());
   }); 
  
   $('#y').change(function(){
    $('#yVal').text($(this).val());
   });
  
  });
  </code></pre>
  
  <p><a href="http://jsfiddle.net/Z2EBh/" rel="nofollow">http://jsfiddle.net/Z2EBh/</a> 
  I'd like to know how I can redraw my circle each time when value in range input is changed. </p>