title: disabled attribute does not work in firefox - for a div
body: <p>hi my dear friends :<br>
  the below code works perfect in ie9 , but does not work in firefox 3.6  </p>
  
  <pre><code>$('#ctl00_ContentPlaceHolder1_RadUploadImage').attr('disabled', 'disabled');
  </code></pre>
  
  <p>ctl00_ContentPlaceHolder1_RadUploadImage -> is a div element  </p>
  
  <p>mean when we check this div with firebug , shows us disabled="disabled"<br>
  but i have a RadUpload Inside that div that is working still! </p>
  
  <p>the html code is like below :  </p>
  
  <pre><code>&lt;div disabled="true" id="ctl00_ContentPlaceHolder1_RadUploadImage" class="RadUpload RadUpload_BlackByMe RadUpload_rtl RadUpload_BlackByMe_rtl" style="width: 325px;"&gt;
              &lt;input autocomplete="off" id="ctl00_ContentPlaceHolder1_RadUploadImage_ClientState" name="ctl00_ContentPlaceHolder1_RadUploadImage_ClientState" type="hidden"&gt;
          &lt;ul class="ruInputs" id="ctl00_ContentPlaceHolder1_RadUploadImageListContainer"&gt;&lt;li&gt;&lt;span class="ruFileWrap ruStyled"&gt;&lt;input style="position: absolute; left: 0px; top: -5000px;" class="ruFileInput" size="23" dir="ltr" id="ctl00_ContentPlaceHolder1_RadUploadImagefile0" name="ctl00_ContentPlaceHolder1_RadUploadImagefile0" type="file"&gt;&lt;input size="22" class="ruFakeInput" type="text"&gt;&lt;input class="ruButton ruBrowse" value="select" type="button"&gt;&lt;/span&gt;&lt;input name="ClearInput" class="ruButton ruClear" value="erase" id="ctl00_ContentPlaceHolder1_RadUploadImageclear0" type="button"&gt;&lt;/li&gt;&lt;/ul&gt;&lt;/div&gt;
  </code></pre>
  
  <p>any idea?  </p>
  
  <p>thanks in advance</p>