Recently, i came across a problem.
We designed a survey and launched.
But when the respondents takes the survey in "Mozilla FireFox" he able to change his responses using "BACK BUTTON".
So plz can any one help me.
Please, let by back button as it is...
Use a server-side application based on session control to prevent retyping the answer within the same session.
Recode your application to take into account that your visitors have a back button that they can use whenever they choose to and you can't stop them.