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onDrop - remove parent if empty

Hi,

I'm trying to make sure that if I drag the last tiem out of a folder, instead of the folder turning to a page, the folder should be removed from the tree, if it is empty. Anyhow, unless I'm taking the wrong approach, this almost works but the page I've dragged out of the folder never gets dropped.

function onDrop(sId,tId,id,sObject,tObject)
{

        if (skipDrag == false)
            {
                var myID = tree.getSelectedItemId();            
                editSite(id,myID,"move"); /*does ajax stuff*/
                if (tree.hasChildren(tree.getParentId(sId)) == 1)
                    {    
                        tree.deleteItem(tree.getParentId(sId),true);
                    }
                
            }    

return true;
}