function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
{
  var rv = -1; // Return value assumes failure.
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }
  return rv;
}

if(getInternetExplorerVersion() < 7 && getInternetExplorerVersion() > 1){
    document.write("<script src=\"http://ie7-js.googlecode.com/svn/version/2.0(beta3)/IE7.js\" type=\"text/javascript\"></script>\n<link rel=\"stylesheet\" href=\"pngfix.css\" type=\"text/css\" />");
}else{
    document.write("<link rel=\"stylesheet\" href=\"normalpng.css\" type=\"text/css\" />\n");
}
