oxObj.style.display = "none";
                
                // Change text of button
                if (boxObj.style.display == "none") {
                    buttonObj.src = "img/btP.gif";
                }
            }
        }
    
       function switchStateForAll(buttonObj, boxList) {
            if (buttonObj == null) {
                // button not found
            } else if (buttonObj.value == "+") {
                // Expand all
                expandAll(boxList);
                buttonObj.va