Xartok

function set_first_post_proc_free() {
    global $woocommerce;

    $coupon_monthly = "oppf1";
    $coupon_yearly = "oppf2";

    $items = $woocommerce->cart->get_cart();

    foreach ($items as $cart_item_key => $values) {
    	$product = $values["data"];

Xartok

// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel

// MIT license

(function() {
    var lastTime = 0;
    var vendors = ['ms', 'moz', 'webkit', 'o'];

Xartok

var f = (function() {
    for(var i = 1; i <= 3; i++){
        var j = i + 1; // with block scope, j would be inaccesible outside the for statement
    }
    return j; // however, j is accessible here, because Javascript doesn't have block scope
})();

console.log("f: ", f); // as a result, f value is 4, not undefined