title: How to stop audio played by audio tag of HTML5
body: <p>I am new to HTML5 and I am exploring HTML5 features. There I came across audio tag.<br>
  I written code with it to play sound files. <br>
  I am having one problem with this tag. On button click, I want to change the sound file stopping the previous one.<br>
  I searched a lot but didn't find anything.
  Please help me to stop the sound played by audio tag.
  <br>Here is my code;
  <br></p>
  
  <pre><code>  try
    {
         if(MyAudio != undefined)
         {
            MyAudio = null;
         }
         MyAudio = new Audio("filename");
         MyAudio.play();
    }
    catch(v)
    {
      //alert(v.message);
    }
  </code></pre>