I need to be able to call the DeleteAllAttachments() from Javascript, is it possible?  I have not been able to get this code or something similar to work, please help.

1.     <script type="text/javascript">  
2.         var uploaderid='<%=UploadAttachments1.ClientID %>';   
3.         function DoDeleteAllAttachments()   
4.         {   
5.             var uploader=document.getElementById(uploaderid);   
6.             uploader.deleteallattachments();   
7.         }