[jQuery] $('').size() === 0 in IE??

[Peter Bengtsson]

I'm going to explain my problem by code. Both of these work perfectly
fine in Firefox but only the *second one* works in IE 6.


** THE ONE I WANTED TO WRITE **

function __duplicateToolbarButtons() {
   // Make "save" and "save and view" buttons appear in toolbar
   if ($('#CMSButtonBar').size() && $
('input.duplicateintoolbar').size()) {
      // Next, make <A> elements then put them into button bar
      $('input.duplicateintoolbar').each(function() {
         var btn = this;
         var a = $("<a>")
           .attr('href','#')
             .addClass('ButtonAction')
               .click(function() {
                  btn.click(); return false
               })
                 .text(btn.value);

         // insert it just before the last <div> in that area
         $('div', $('#CMSButtonBar')).slice(-1).before(a);

      });
   }
}


** THE ONE I HAD TO WRITE **

function __duplicateToolbarButtons() {
   // Make "save" and "save and view" buttons appear in toolbar
   if ($('#CMSButtonBar').size() && $
('input.duplicateintoolbar').size()) {
      // Next, make <A> elements that put them into button bar
      $('input.duplicateintoolbar').each(function() {
         var btn = this;

         var a = document.createElement('a');
         a.setAttribute('href','#');
         a.className='ButtonAction'; //
a.setAttribute('class','ButtonAction') doesn't work
         a.onclick=function() {btn.click(); return false};
         a.innerHTML=btn.value;

         // insert it just before the last <div> in that area
         $('div', $('#CMSButtonBar')).slice(-1).before(a);

      });
   }
}


At first I thought it was something wrong with the way I appended the
created element into the DOM tree but then I added this code just
after the $('<a>')... stuff::

 alert(a.size());

In Firefox it said 1 (as expected) but in IE 6 it said 0!! Why?
Are there pitfalls I don't know about in creating elements in IE that
are FAQ?

PS. This is jquery-1.2.3.min.js and the piece of junk is IE 6.0 sp2.