gistfile1.js

<script>

Function.prototype.before = function(methodName, newFunc) {
	var oldFunc = this[methodName];
	console.debug(oldFunc)

};


function someObject()
{
	this.before = Function.prototype.before;
	
	this.one_more = function()
	{
		console.debug('one_more');
	}

}

var another_obj = new someObject();
	another_obj.before("one_more", function(){
		console.debug('then see this');
	});
	
	
	
</script>