Функция resizeimg()

<script type="text/javascript">
// <![CDATA[
  window.onload = resizeimg;
  function resizeimg()
  {
   if (document.getElementsByTagName)
   {
    var resClass = document.getElementsByTagName('span');
    for (var i = 0; i < resClass.length; i++)
    {
     if (resClass[i].className == "image-resize")
     {
      var img = resClass[i].getElementsByTagName("img");
      if (img[0].width > 650)
      {
       resClass[i].innerHTML = '<a href="' + img[0].src + '" class="highslide" onclick="return hs.expand(this)"><img src="' + img[0].src + '" width="650" alt=""></a>';
      }
     }
    }
   }
  }
// ]]>
</script>