Hello,

I asked a question on http://stackoverflow.com/questions/2719643/javascript-this-points-to-window-object regarding "this" points to Window object.

here is source code

var archive = function(){} 

archive.prototype.action = { 
    test: function(callback){ 
        callback(); 
    }, 
    test2: function(){ 
        console.log(this); 
    } 
} 

var oArchive = new archive(); 
oArchive.action.test(oArchive.action.test2); 

Tim Down wrote "but that function is then called using callback(), which means it is not called as a method and hence this is the global object".

What are differences between calling a function by its actual name and callback() as shown on the source code?

How does console.log(this) in test2 points to Window when it is inside archive.action???