Help with FireEvent

[ankitjc.wipro]

Hi,

I'm having some trouble in using the events in extJS.

I have 2 files -

A.js and B.js

In A.js ->

functionStart: function() {
    this.B = new B ({
        listeners: {             
                 'functionToUse': this.onFunctionToUse,             
                 scope: this            
         }    
    });
},

onFunctionToUse: function(arg) {
     alert("Needs To Reach Here");
}
}

In B.js ->

1) In constructor, I theres a button which invokes -> functionInvoker (); 

2) //Custom defined events  
this.addEvents({    'functionToUse': true  });

3) //AND then in body -> 

 functionInvoker: function() {
    alert('Before');
    this.fireEvent('functionToUse',argument);    
    alert("After");  
},

My problem is the fireEvent is not working.
I get the alerts "Before" and "After", but the onFunctionToUse is not getting called..

Can someone please guide me a direction?

[danguba]

My guess is that you are loosing scope. Try to console.log(this) in functionInvoker or post more code so I could provide better suggestion