How to solve Autofill through js

[Vandna_tours_And_travel]

I have one problem when my text box is get autofilled but after when i click the submit button its again ask to fill the text box and if i click the button through js then result show null. Please help me on this.

[Taifun]

Duplicate of

Autofill textboxes customwebsite

I have one problem when my text box is get autofilled but after when i click the submit button its again ask to fill the text box and if i click the button through js then result show null. Please help me.

Taifun