758 …  var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
761       if(children) {
764         for (index = 0; index < children.length; index += 1) {
765           if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
766             offset -= Element.offsetSize (children[index], droponOptions.overlap);
767 …      } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
768             child = index + 1 < children.length ? children[index + 1] : null;
771             child = children[index];
812     var children = Sortable.findElements(element, options) || [];
814     for (var i = 0; i < children.length; ++i) {
815       var match = children[i].id.match(options.format);
823         children: [],  property in Sortable._tree.child
824         position: parent.children.length,
825         container: $(children[i]).down(options.treeTag)
832       parent.children.push (child);
852       children: [],  property in Sortable.tree.root
905       return Sortable.tree(element, arguments[1]).children.map( function (item) {
907                 encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));