function $() {
            var elements = new Array();
            for (var i = 0; i < arguments.length; i++) {
                var element = arguments[i];
                if (typeof element == 'string')
                    element = document.getElementById(element);
                if (arguments.length == 1)
                    return element;
                elements.push(element);
            }
            return elements;
        }
function displaySubmenu(parent) {
            var objChild = $(parent.name + '_child');

            if (typeof objChild == "undefined" || objChild == null) {
                return false;
            }

            var parentPosLeft = parent.getBoundingClientRect().left;
            var parentPosRight = parent.getBoundingClientRect().right;
            var parentPosTop = parent.getBoundingClientRect().top;
            var parentPosBottom = parent.getBoundingClientRect().bottom;

            objChild.style.position = "absolute";
            objChild.style.display = "block";
            objChild.style.top = parentPosTop + document.body.scrollTop + 28;
            objChild.style.left = parentPosLeft + document.body.scrollLeft - 4;
        }
function hiddenSubmenu(parent) {
            var objChild = $(parent.name + '_child');

            if (typeof objChild == "undefined" || objChild == null) {
                return false;
            }
            
            objChild.style.display = "none";
        }