var dom = (document.getElementById && !document.all)? 1: 0;
function OnOff(id, hide) {
var obj = (dom)? document.getElementById(id): document.all[id];
if (hide) {
obj.style.visibility = "hidden";
obj.style.display = "none";
}
else if (obj.style.visibility !== "visible") {
obj.style.visibility = "visible";
obj.style.display = "block";
}
else {
obj.style.visibility = "hidden";
obj.style.display = "none";
}
}