how to change display of page if errors in form submission

how to change display of page if errors in form submission

References

Reference NO 1

http://stackoverflow.com/questions/13640250/how-to-change-display-of-page-if-errors-in-form-submission

Reference NO 2

http://stackoverflow.com/questions/16510505/display-errors-after-dialog-confirm-on-the-same-page-jquery-and-php

Reference NO 3

http://tapestry.apache.org/forms-and-validation.html

Reference NO 4

http://www.gravityhelp.com/documentation/page/Developer_Docs

Reference NO 5

https://docs.djangoproject.com/en/dev/topics/forms/

Reference NO 6

http://webaim.org/techniques/formvalidation/

Reference NO 7

http://coredogs.com/lesson/form-and-php-validation-one-page

Reference NO 8

http://www.djangobook.com/en/2.0/chapter07.html