Refer to javascript function from within itself

I think you are asking for arguments.callee, but it's deprecated now.

https://developer.mozilla.org/en/JavaScript/Reference/Functions_and_function_scope/arguments/callee

var crazy = function() {
    console.log(this);
    console.log(arguments.callee.isCrazy); // right.
}
crazy.isCrazy = 'totally';
crazy();
// ouput =>
// DOMWindow
// totally

As rfw said, this is the most straight forward way to go if the function has one single name:

var crazy = function() {
    console.log(crazy);
    console.log(crazy.isCrazy);
};

crazy.isCrazy = 'totally';
crazy();

In case it may have different names, or you wanted to pass it around, it must be wrapped in a closure:

var crazy = (function(){
    var that = function() {
        console.log(that);
        console.log(that.isCrazy);
    };
    return that;
})();

crazy.isCrazy = 'totally';
crazy();