function findElement (id) {
if (document.all || document.getElementById) return null;
if (document.all) {
return document.all(id);
} else if (document.getElementById) {
return document.getElementById(id);
}
}
function disBlock(id){
var obj = findElement(id);
if (obj) obj.style.display = "block";
}
function disNone(id){
var obj = findElement(id);
if (obj) obj.style.display = "none";
}