https://autodoping.ru/kernel/forms.js?v16

1function UnisiterIsValidEmail(email, strict)
2{
3    if ( !strict ) email = email.replace(/^\s+|\s+$/g, '');
4    return (/^([a-z0-9_\-]+\.)*[a-z0-9_\-]+@([a-z0-9][a-z0-9\-]*[a-z0-9]\.)+[a-z]{2,4}$/i).test(email);
5}
6
7function UnisiterSetError(obj, text)
8{
9    obj.parents("div").addClass('inputerror');
10    obj.parents(".item").children(".hint").css('display','none');
11    obj.parents(".item").children(".hinterror").css('display','table');
12    obj.parents(".item").children(".hinterror").children("div").text(text);
13}
14
15jQuery(function ($) {
16    $('form.forms input').bind('change keyup input click', function() {
17        var obj = $(this);
18        obj.parents("div").removeClass('inputerror');
19        obj.parents(".item").children(".hint").css('display','table');
20        obj.parents(".item").children(".hinterror").css('display','none');
21    });
22});