need help how to show and hide button in the same form

need help how to show and hide button in the same form

i have build form with add button and update button if it is add then update button will be hide and some label text and vice versa with update button..is that possible how i'm going to do that..can you give me some example...

need help how to show and hide button in the same form

i have build form with add button and update button if it is add then update button will be hide and some label text and vice versa with update button..is that possible how i'm going to do that..can you give me some example...
can't be done only with html and css, that's why people don't answer. As far as you have a form you need some coding to process submited data. Where you submit data, on your server or remote?. If are not remote what language you use to process them?

best regards