Idiot question-check for js verification.

Idiot question-check the js verification. dear friends, my code is like this:


I want to add a js check for this check. if one is not selected, it will stay on the original page and issue a warning. If yes, it will jump to reponse. php. I tried a lot of js codes on the Internet, but none of them were successful. how do you write this js code?

Reply to discussion (solution)

I wrote it casually, but I haven't verified it. the general idea is this.

$ ("Input [name = 'submit ']"). click (function () {if ($ ("input [name = 'activite [] ']"). attr ("checked") = false) {alert ('select at least one '');} else {location. herf = "reponse. php ";}});

When the check fails, you need to return false to prevent the page from redirecting. Otherwise, the page will jump even though the check is out. So after the code that prompts the warning, follow a return false;
The code will not be written. I haven't written PHP for a long time. forget it, huh, huh.

Script function func (obj) {var boxs = obj. elements ['activite [] ']; var counter = 0; for (var I = 0; I