function changeImages() {
   if (document.images && (preloadFlag == true)) {
      for (var i=0; i<changeImages.arguments.length; i+=2) {
         document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
      }
   }
}

var preloadFlag = false;
function preloadImages() {
   if (document.images) {
      preloadFlag = true;
   }
}

Nowe = null;
function bigImg(w,h,src) {
  if (Nowe) Nowe.close();
  Nowe = window.open('',"bigImg",'height=' + h + ',width=' + w + ', toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,status=no,directories=no,resizable=no');
  Nowe.document.open();
  Nowe.document.write("<html><head></head><body style='margin: 0px'><a href='javascript:window.close()'><img src='" + src + "' border=0></a></body></html>");
  Nowe.focus()
}

pop_win = null;
function popup(w,h,url) {
  if (pop_win) pop_win.close();
  pop_win = window.open(url,"pop_win",'height=' + h + ',width=' + w + ',toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=yes,status=no,directories=no,resizable=no' );
}