function testClick(e)
        {
            if (window.event) e = window.event;
            var evt = e.srcElement ? e.srcElement : e.target;
            if (evt.previousSibling && evt.previousSibling.tagName == "INPUT" && evt.previousSibling.type == "checkbox") {
                if(!evt.previousSibling.disabled){
                evt.previousSibling.checked = evt.previousSibling.checked ? false : true;
                }

                var childrenDivID = evt.previousSibling.id.replace('CheckBox', 'Nodes');
                var div = document.getElementById(childrenDivID);
                if (div == null) return;
                var checkBoxs = div.getElementsByTagName('INPUT');
                for (var i = 0; i < checkBoxs.length; i++) {
                    if (checkBoxs[i].type == 'checkbox') {  
                        if(!evt.previousSibling.disabled){       
                           checkBoxs[i].checked = evt.previousSibling.checked;
                        }
                    }
                }
            }
        }