jsPattern.wrapFnWithNewFn.js - to replace the function with a new function at certain situation.

jsPattern.wrapFnWithNewFn.js

function wrap(object, method, wrapper) {
    var fn = object[method];
    return object[method] = function () {
        return wrapper.apply(this, [fn.bind(this)].concat(
        Array.prototype.slice.call(arguments)));
    };
}
if (Prototype.Browser.Opera) {
    wrap(Element.Methods, "readAttribute",

    function (original, elem, attr) {
        return attr == "title" ? elem.title : original(elem, attr);
    });
}