Prevent copy password of CreateUserWizard

 I want to prevent the copy and paste of passwword to confirmpassword.  I have tried to prevent this action with the Javascript below but I continue to get the error "The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).".
The jvascript I am using is as follows:
$(document).ready(function () {
var PasswordClientID = = document.getElementById('<%= CType(CreateUserWizardStep1.ContentTemplateContainer.FindControl("Password"), TextBox ).ClientID %>');
$(PasswordClientID).bind('copy', function (e) {
 e.preventDefault();
});
var ConfirmPasswordClientID = = document.getElementById('<%= CType(CreateUserWizardStep1.ContentTemplateContainer.FindControl("ConfirmPassword"), TextBox ).ClientID %>');
$(ConfirmPasswordClientID).bind('copy', function (e) {
    &nbs ...