simple bootstrap form validation on jquery

bootstrap_form_validation.js

function checkErrors(el) {
	var errors = false
	el.find('input, textarea').each(function(){ 
		if ($(this).val() == '') { 
			$(this).closest('.form-group').addClass('has-error');
			errors = true;
		} else {
			$(this).closest('.form-group').removeClass('has-error');
		}
	});

	if (errors) return true;
	else return false;
}


//////////
$('form').submit(function(e){
	var form = $(this);
	if (checkErrors(form)) return false;
});