How to remove a dragLanding?

Suite and Optimus Suite 5
#1

Hi~
I’ve got 2 trees where you can drag and drop between them (for the most part). Anyways, when one of the trees is empty I create a dragLanding so I can “drag” back into the empty tree.

Now, when I drag back into the dragLanding I programtically move the item into the empty tree. So far all is good, but since the tree is no longer empty, I would like to remove the dragLanding.

How can I do this?

var parentId = xtree.getParentId(nodeid);  

xtree.moveItem(nodeid,'item_child',0,deleteTree);
if(parentId != "0")
{
  nodeClick(parentId);
}
else
{                
   var sInput = document.getElementById("emptyLocTree");
   deleteTree.dragger.addDragLanding(sInput, new s_control);
 }

function s_control() {
    this._drag = function(sourceHtmlObject, dhtmlObject, targetHtmlObject) {
      deleteTree.moveItem(nodeid,'item_child',0,xtree);
      targetHtmlObject.style.backgroundColor = "";
    }
    this._dragIn = function(htmlObject, shtmlObject) {
        htmlObject.style.backgroundColor = "#fffacd";
        return htmlObject;
    }
    this._dragOut = function(htmlObject) {
        htmlObject.style.backgroundColor = "";
        return this;
    }
}
#2 
deleteTree.dragger.removeDraggableItem(sInput);

By the way , whole tree area can be used as drop landing ( and if you are not disabling it specially - it must be enabled, by default ) - so creating a special drop area is not necessary.