I am working on simple project and it's for the institute Class project where i am learning php. i have to submit the project as soon as possible. But i am doing it different way then of i was supposed. Instead of validation message i want to use a picture or icon with Red error icon and Green yes icon as you can check in the attached picture. I am calling a function on submit button and if there is any error then using document.GetElementById('error').style.background="none" and ="pic url". I am getting output but it's just for a second then disappeared. I have already attached the Screen Shot to get the full idea.

Mainly i want to display red icon on error and green one when there is not error.