function valid(form) 
{
    var email_str = form.email.value;
    var name_str = form.name.value;
    var textcontent = document.getElementsByTagName("textarea");
    var textlength = textcontent[0].value.length;
    var reg1 = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/;
        if (reg1.test(email_str)==false || name_str==null || name_str=="" || textlength==0 || textlength==null) {
        alert("Some datas are missing or invalid!");
        return false;
        } else {
        return true;
        }
    // document.write ( email_str + name_str + textcontent + textlength);
}