HTML5 - Form validation

validation should be done by Javascript before The form is submitted.

Javascript

Input Elements has two most used properties

type and value

example : 

textbox( http://www.w3schools.com/jsref/dom_obj_text.asp )

textObject.value

To do the validation with javascript

<input type="submit" value="Submit this form"
οnclick="formvalidation('myform');return false;" />

After validation to send the form data to server:

myform.submit();

Jquery form validation

$('#myform').submit(function() {
        var motPasse1 = $('#form_motPasse').val();
        var motPasse2 = $('#form_motPasse2').val();
        if(motPasse1 != motPasse2){
            alert("Les deux mot de passe ne sont pas identiques");
            return false; // cancel form submission if passwords don't match
        }
        return true; // return true if no errors
});

Javascript Form validation