Native js function carrying realizations

carrying.js

//#1
var attitude = function(original, replacement, source)
{
	return function (source)
	{
		return source.replace(original, replacement);
	}
}

var slimify = attitude(/big test mark/ig, "smallone");
var happify = attitude(/sad/ig, "happy");

slimify("Big test mark is used"); // smallone is used
happify("Sadman is your Sandman"); //happyman is your Sandman

//#2
var param = "someVar";
var attitude = (function(i){
	if (i == "someVar")
	{
		return function slimify(str)
		{
			return str.replace(/big test mark/ig, "smallone");
		}
	}
	else
	{
		return function happify(str)
		{
			return str.replace(/sad/ig, "happy");
		}
	}
}(param));

attitude("Big test mark is used"); //smallone is used