submit « validation « Javascript HTML CSS Q&A

1. How can I validate input when input submit is clicked prior to the submit happening?    stackoverflow.com

I want it so when they click on the submit button it will first check all the fields with class="req" and if any are empty it will cease to submit and ...

2. javascript form validation, before submitting help?    stackoverflow.com

I have the following form:

<select name="size">
    <option value="">Please Select</option>
    <option value="1">Medium</option>
    <option value="2">Large</option>
</select>
<select name="material">
    <option value="">Please Select</option>
   ...

3. How do I check form elements in HTML before the form has been submitted?    stackoverflow.com

I'm using PHP to validate and run my form, however, I want to check elements as they are filled out. How do I check an element for its current value prior ...

4. need javascript validation and submission    stackoverflow.com

I have done certain amount of validation but cannot stop the form from submitting it please help me with the validation of other left fields this is my code:

<form action="" method="post" ...

5. HELP: Using Javascript to validate and act on form submission in CSS box    forums.devshed.com

Hi All-- I'm working on a project for my company that will be deployed next week. In a nutshell, we have a bunch of touchscreen computers that we are using as kiosks for an internal event. The various screens have been build in XHTML/CSS, with a smidge of javascript for the few points of interactivity that aren't being handled through the ...