gistfile1.js

for(var k in p){
    if(typeof(p[k])=='function'){
        (function(k){
            var cachedCommand = commands[k];
            commands[k] = function(){
                if(ctx == null){
                    if(strict==true){
                        throw "No context!";
                    }
                    ctx = makeDefaultContext();
                } else {
                    //
                    // unwrap command k back to fast-executing version
                    // the first time its called
                    //
                    commands[k] = cachedCommand;
                }
                cachedCommand.apply(p, arguments);
            }
        })(k);
    }
}