title: Javascript document.write() - Replace PNG with GIF?
body: <h3>The Scenario</h3>
  <p>I have an asp.net web application with a HTML/CSS front end.
  This all works fine but in Internet Explorer 6, the transparent PNG's that I use within the site are not transparent due to the poor design of this particular browser.</p>
  <h3>Solutions Attempted</h3>
  <p>I've already attempted various IE6 PNG Transparency fixes that didn't work.</p>
  <h3>The Proposed Solution</h3>
  <p>I thought about using GIF Image replacements for when the website detects that the browser is IE6. I don't have any javascript experience but someone has mentioned that I could use the &quot;document.write()&quot; feature off javascript to replace the PNG's with GIF's of the same image when using IE6 as the browser.</p>
  <h3>The Question</h3>
  <p>Please could someone explain to me how I would go about doing this?
  Baring in mind I have an understanding of C# etc. but no javascript knowledge. I'm only just starting out as a web developer so simple explanations would aid me greatly.</p>
  <p>Thanks for the help.
  Regards.</p>