getElementsByName not working in IE for elements created dynamically

It seems a damn one of IE's bugs. When you create element dynamically or insert html into some container like div, cell, getElementsByName doesn't work for them in IE, althoug it works in Firefox.

I spend half day on tracing below code why it not work as my expectation.

function DisplayFullDescription(e)
      {

        
        var divs=document.getElementsByName('divProbdesc');
 
        for(var i=0;i<divs.length;i++)
        {
          var div=divs[i];
          div.style.display=document.getElementById('chkFullDesc').checked?'block':'none';
        }
        
      }

 

Finally I had to change it with a workaround method.

function DisplayFullDescription(e)
      {

        
        var divs=document.getElementsByTagName('div');
 
        for(var i=0;i<divs.length;i++)
        {
          var div=divs[i];
          if(div.className=="fly_div")
          {
            div.style.display=document.getElementById('chkFullDesc').checked?'block':'none';
          }
        }
        
      }