how to load php pages completely which contain jquery form without refreshing pages

how to load php pages completely which contain jquery form without refreshing pages

i have tried to make index.php and logout.php file and i want to make all the pages loaded without refresh. the problem is after i click button from logout.php to index.php file the page are loaded without refresh (i think it works), but the jquery form in index.php file doesn't works. how to fix this error? thanks in advance.