jsTree Node Expand/Collapse

Question

I ran into the excellent jstree jQuery UI plug in this morning. In a word - great! It is easy to use, easy to style & does what it says on the box. The one thing I have n

Answer 1

The above answer will construct tree again and again. The below code will open the node and collapse which are already opened and it does not construct tree again.

.bind("open_node.jstree",function(event,data){
        closeOld(data);
        });

and closeOld function contains:

function closeOld(data)
{
    if($.inArray(data.node.id, myArray)==-1){
            myArray.push(data.node.id);
            if(myArray.length!=1){
                var arr =data.node.id+","+data.node.parents;
                var res = arr.split(",");
                var parentArray = new Array();
                var len = myArray.length-1;
                for (i = 0; i < res.length; i++) {
                    parentArray.push(res[i]);
                }
                for (var i=len;i >=0;i--){
                    var index = $.inArray(myArray[i], parentArray);
                if(index==-1){
                    if(data.node.id!=myArray[i]){
                    $('#jstree').jstree('close_node',myArray[i]);
                        delete myArray[i];
                    }
                }
                }
        }
    }