My purpose is to build a singular UI plugin for a commercial purpose.

This is a simple bill manager. (with its display later)

1/ My datas description is like this : 

      _footer:{},

2/ Purposes :

- Data defaults must not be changed by the user developper. (So I set this in a undescored function)

- Three methods are built and are exposed : 

• sum_tax(taxid)  //Taxid is optionnal
• sum_net()
• sum_full()
• display() method will be written later

All of that runs as well : 

1/ var billRows={

'2154F':{'name':"fork model 54",'price':25,'quantity':10,taxId:"1"},

'4678K':{'name':"knife model 78",'price':36,'quantity':10,taxId:"2"}

}; //Plugin parameter declaratives

2/ billX=$("#bill").bill({bill:{rows:billRows}}); // instantiate plugin

Ok from here but now :

I should write :billX.bill("sum_tax",1) or billX.bill("sum_tax") 

I would prefered to write like this billX.bill.sum_tax(1) or billX.bill.sum_tax() 

Is it possible ?

Thanks