fixed: singlepath

demo/en/super/singlepath.html

@@ -71,8 +71,25 @@
 		}
         function singlePath(newNode) {
             if (newNode === curExpandNode) return;
-			if (curExpandNode && curExpandNode.open==true) {
-				var zTree = $.fn.zTree.getZTreeObj("treeDemo");
+
+            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
+                    rootNodes, tmpRoot, tmpTId, i, j, n;
+
+            if (!curExpandNode) { //very first expand: check if roots are already opened
+                //by default and close if not my root
+                tmpRoot = newNode; //just in case, don't break any original code
+                while (tmpRoot) {
+                    tmpTId = tmpRoot.tId; //will be my root when while() ends
+                    tmpRoot = tmpRoot.getParentNode();
+                }
+                rootNodes = zTree.getNodes();
+                for (i=0, j=rootNodes.length; i<j; i++) {
+                    n = rootNodes[i];
+                    if (n.tId != tmpTId) {
+                        zTree.expandNode(n, false);
+                    }
+                }
+            } else if (curExpandNode && curExpandNode.open) {
                 if (newNode.parentTId === curExpandNode.parentTId) {
                     zTree.expandNode(curExpandNode, false);
                 } else {