how to display a load image while data is loaded

hello,

i am using ajax to get data from database and display it in my jsp page.
while ajax is doing its work i want to display a waiting symbol.
how i can do this

thanks in advance

Probably the easiest way is to include the "wait" indicator as a hidden element on the page, make the pre-submit JavaScript alter it from hidden to visible, and then have the post-AJAX code hide it again.

thanks for solution

how to do it i want to a waiting symbol on whole page as front page of main page

I don't know what you mean by that, but like any other display effect in an HTML page, you'd use CSS.

pardon me for confusion

i want to make page blur when data is loading and a very big waiting symbol is running in center of that page and after loading complete that page became focused

Create div layer that covers the entire page with a high z-index and set the opacity low perhaps?