change NewForm2 behaviour

Hi

Yes you can modify the newForm.aspx dialog

<a title="aTitle" onmouseover="javascript:this.style.cursor='hand'; 
    onclick="javascript:SP.UI.ModalDialog.ShowPopupDialog('http://path/to/NewForm.aspx';);
    return false;">
    link Text
</a> 

You can read more about SP.UI.ModalDialog at http://msdn.microsoft.com/en-us/library/ff408909.aspx

http://sharepoint.stackexchange.com/questions/20473/newform-aspx-in-a-dialog-box

Please mark the Answer and vote me if you think that above solution can help you to resolve the issue