php help required

[amit]

How to select all checkbox in a form,supoose i have a bitton SELECT ALL and on pressing it all the checkboxes should be selected.How is it possible please let me know or if it is possible using only client side scripting?

[xblue]

with php it would only be possible if you reload the page. it's much more common though doing it with javascript I think. simply look at the source of a page where you see it to learn how it is done, or browse around at hotscripts.com, they've got a javascript section, too.