Topic: JavaScript / jQuery Prev|Next. I set the hidden property and I am also calling a function on a button click. I have a button like following now the f1 function should show a alert box contain button value. In this article you will see how to insert a value from a radio button into a MySQL database using PHP. In JavaScript, all function arguments are always passed by value. type: Specifies the type of the button. You can set this in a