Difficulty arises when attempting to run code when a checkbox is not selected

In my form validation process, I am facing an issue where I need to validate certain values only if a checkbox is unchecked. If the checkbox is checked, I want to use the values that were previously added. However, none of the existing code snippets seem to be working for me in accomplishing this task. It is crucial for me to ensure the validation of these values before redirecting them to another form.

var ui=document.getElementById('same_info').value;
    ui.OnChange = valid;
       function valid()
         {var frmvalidator  = new Validator("myform");
        frmvalidator.addValidation("shipping_first_name","alpha_s","please enter your First Name or full name");
frmvalidator.addValidation("shipping_first_name","req","Please enter your First Name");

}

2.

 if(!document.myform.same_info.checked)

{ alert('infobox  is not checked'); }

I have implemented JavaScript for validating the form. The script works perfectly fine with form elements except for the ones whose values are dependent on the checking/unchecking of a checkbox.

Answer №1

Modify:

var userInput = document.getElementById('same_info').value;

to

var userInput = document.getElementById('same_info');

Additionally, please note that it should be onchange, not OnChange as Javascript is case sensitive.

userInput.onchange = validate;

Keep in mind that even if the user checks and then unchecks it, the validation requirements will still apply unless explicitly removed.

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