dnd won't start dragging in at least ie6

[spackest]

In my experience, for all the tests in 

http://archive.dojotoolkit.org/nightly/tests/dnd/

dragging won't start in ie6.

I tracked down the ie problem to part of the revision 2994 commit, src/dnd/HtmlDragManager.js for which annotate has 

  2994      david               // only begin on left click
  2994      david               if(dojo.render.html.ie) {
  2994      david                       if(e.button != 0) { return; }
  2994      david               } else if(e.which != 1) {
  2994      david                       return;
  2994      david               }

I think the e.button number is just wrong. In my testing, the left button is 1, right button is 2. Changing the 0 to a 1 as per the patch below, will at least let the dragging start

Index: src/dnd/HtmlDragManager.js
===================================================================
--- src/dnd/HtmlDragManager.js  (revision 3013)
+++ src/dnd/HtmlDragManager.js  (working copy)
@@ -131,7 +131,7 @@
 
                // only begin on left click
                if(dojo.render.html.ie) {
-                       if(e.button != 0) { return; }
+                       if(e.button != 1) { return; }
                } else if(e.which != 1) {
                        return;
                }

[bill]

Fixed in #3020.