function validate_1() {
  if (window.document.contact.info_4.value == "") {
    alert("Enter your Name First.");
    window.document.contact.info_4.focus();
    return false;
  }
   var theEmail = window.document.contact.info_8.value;
  var emailRegexp = new RegExp("^[A-Za-z0-9]([-A-Za-z0-9._+]+[-A-Za-z0-9_+]+)*\@[-A-Za-z0-9][-A-Za-z0-9.]*[.][A-Za-z]{2,4}$");

  if (!emailRegexp.test(theEmail)) {
    alert("The email address you entered is invalid\n" + "Try again.");
window.document.contact.info_8.value="";    
    window.document.contact.info_8.focus();
return false;
}
}