I have made a sign up form which asks user to enter his personal + Academic details and EMPLOYMENT INFO, i am done with personal and academic details section and also designed EMPLOYER INFO section but as u know that it isn't necessary that every person would have employment experience so i provided an option with YES | NO..... so i want that if user click on YES then EMPLOYMENT INFO section appears and if no, then disappears. i have kept employment info within <DIV></DIV>,

e.g http://www.bayrozgar.com/signup.php

have a look at employment section

I don't see any problem exist on the page.

@Ips i have solved it
like this

<div id="empinfodiv" runat=server>

then like this

if (checkboxemployeement.checked)
{
empinfodiv.visible=true;

}