Mootools bind :


	bind: function(bind){
		var self = this,
			args = (arguments.length > 1) ? Array.slice(arguments, 1) : null;

		return function(){
			if (!args && !arguments.length) return self.call(bind);
			if (args && arguments.length) return self.apply(bind, args.concat(Array.from(arguments)));
			return self.apply(bind, args || arguments);
		};
	},


   My javascript :

      var obj = { name : 'test' };

    events.connect('some event' , function() { echo(' this works ok ' ) });

    events.connect('some other' , function() { echo( this.name + ' wont work' ) }.bind( obj ));