function styleAbbr() {
  var oldBodyText, newBodyText, reg;
  
  isWinIE = (navigator.appVersion.indexOf('MSIE') > -1 && 
             navigator.appVersion.indexOf('Windows') > -1);
	     
  if (isWinIE) {
    oldBodyText = document.body.innerHTML;
    /* 
      Jmena tagu v regularnim vyrazu musi byt velkymi pismeny, 
      jinak to nefunguje. Proc, to netusim :-( 
    */
    reg = /<ABBR([^>]*)>([^<]*)<\/ABBR>/g;
    newBodyText = oldBodyText.replace(reg, '<span class=\"help\" $1>$2</span>');
    document.body.innerHTML = newBodyText;
  }
}

window.onload = function() {
  styleAbbr();
};