if (document.all && document.styleSheets && document.styleSheets[0] &&
  document.styleSheets[0].addRule)
 {
  // Feel free to add rules for specific tags only, you just have to call it several times.    #top img
  document.styleSheets[0].addRule('div#sitename img', 'behavior: url(http://fossil.ly/wp-content/themes/maginoo/iepngfix.htc)');
  document.styleSheets[0].addRule('#sitename img', 'behavior: url(http://fossil.ly/wp-content/themes/maginoo/iepngfix.htc)');
 }