Is it possible to add bullets to subform??????????

HI ,

I have a subform ,which has a text field and two buttons (add button and remove button).And on-clicking on add button  the subform instances will be added.

by clicking on remove button the instances of subform will be removed... i want to add a bullets and numbering of subform .Could any one please help me!!!!!!

I have tried by using this function.

var i =0;

function addBullets()

{

var oPath = xfa.resolveNodes("Page1.BankAccount.CloseAccount.bankAcccntNum[*]");

var len = oPath.length;

if(i<=len)

{

i++;

textfield.rawValue =i;

}

}

i am calling this function on click and initialize of button .For first instance of subform bullet is added .But later instances it is not adding .Please help Me

Thanks,

Bharathi.