JavaScript code to stop form submission

Question

One way to stop form submission is to return false from your JavaScript function.

When the submit button is clicked, a validation function is called. I have a case i

Answer 1

All your answers gave something to work with.

FINALLY, this worked for me: (if you dont choose at least one checkbox item, it warns and stays in the same page)

    
    
    
        

            

            
 MY LIKES 
            

            First Name: 
            

            Last Name: 
            

            Convert to uppercase 

            Convert to lowercase 

            Do not convert 

            

             Maths
             Physics
             Chemistry
            


            Submit