title: How do i add width to an object in code?
body: <pre><code>&lt;script language="javascript"&gt;
  var widthx = document.getElementById('testx');
  var newwidth = document.getElementById('mycontent').style.width = widthx.width + 45 //not working
  &lt;/script&gt;
  
  &lt;style type="text/css"&gt;
  #testx
  {
  width: 950px;
  }
  
  #mycontent
  {
  width: 800px; //this width needs to change from javascript to 950 + 45 px
  }
  
  ....
  </code></pre>
  
  <p>I want to change mycontent's width to be testx width + 45 pixels (px). Anybody knows how to do this in javascript ?</p>