title: Reset all visited site color for default color css setting for all latest browser and all doctype(xhtml,html, html5)
body: <p>My website user ask why those his visited link on my site is always recorded even he
  logout and login my site again. And that is of course, I could NOT request users to
  do browser history clear up every time they re-visit my site</p>
  
  <p>So I want mysite css can be back to normal setting as non-visited link and css after
  user logout and login again. Is it possible ?
  I have read several question and reply on stackflow.com that told me  </p>
  
  <p><a href="https://stackoverflow.com/questions/7290959/how-can-i-detect-visited-and-unvisited-links-on-a-page">How can I detect visited and unvisited links on a page?</a></p>
  
  <p><a href="https://stackoverflow.com/questions/20439900/how-to-reset-css-avisitedcolorgreen-when-refresh-browser-address-bar">How to reset css (a:visited{color:green}) when refresh browser address bar</a></p>
  
  <p>it is impossible by Browser security and privacy concern</p>
  
  <p>When I follow this link, <a href="http://dbaron.org/mozilla/visited-privacy" rel="nofollow noreferrer">http://dbaron.org/mozilla/visited-privacy</a>, the code 
  said it will be able to get back those visited link color. But after doing that,
  it will always report to me all link with as un-visited link color. Why ? 
  Is it again browser security and privacy issue ?</p>
  
  <pre><code>var links = document.links;
  for (var i = 0; i &lt; links.length; ++i) {
  var link = links[i];
  /* exact strings to match actually need to be
     auto-detected using reference elements */
  if (getComputedStyle(link, "").color == "rgb(0, 0, 128)") {
      // we know link.href has not been visited
  } else {
      // we know link.href has been visited
  }
  }
  </code></pre>
  
  <p>So my question is "could I recover my visited-link color as un-visited link color  after
  logout and login mysite or refresh browser address bar button for latest browser? How ?</p>
  
  <p>If using HTML5, it will be possible ?</p>
  
  <p>Or do  I tell my users that is impossible to reset css except clear up browser history ?</p>