raindrop-ua

window.someFunc = (function (func) {
    return function () {
        var out = func.apply(this, arguments);
        // do something
        return out;
    };
})(window.someFunc);

raindrop-ua

if (!Array.prototype.indexOf) {
    Array.prototype.indexOf = function(elt) {
        var len = this.length >>> 0;
        var from = Number(arguments[1]) || 0;
        from = (from < 0) ? Math.ceil(from) : Math.floor(from);
        if (from < 0) from += len;
        for (; from < len; from++) {
            if (from in this && this[from] === elt) return from;
        }
        return -1;

raindrop-ua

function addEvent(elem, event, fn) {
    function listenHandler(e) {
        var ret = fn.apply(this, arguments);
        if (ret === false) {
            e.stopPropagation();
            e.preventDefault();
        }
        return(ret);
    }
    function attachHandler() {