function checkform(form){
  if (form.Contact0FirstName.value == "" || form.Contact0FirstName.value == "First Name") {
    alert( "Please enter your first name." );
    form.Contact0FirstName.focus();
    return false ;
  }
  if (form.Contact0LastName.value == "" || form.Contact0LastName.value == "Last Name") {
    alert( "Please enter your last name." );
    form.Contact0LastName.focus();
    return false ;
  }
  if (form.Contact0Phone1.value == "" || form.Contact0Phone1.value == "Phone") {
    alert( "Please enter your phone number." );
    form.Contact0Phone1.focus();
    return false ;
  }
  if (form.Contact0Email.value == "" || form.Contact0Email.value == "Email") {
    alert( "Please enter your email address." );
    form.Contact0Email.focus();
    return false ;
  }
  var string1=form.Contact0Email.value
  if (string1.indexOf("@")==-1 || string1.indexOf(".")==-1) {
    alert("Please enter a valid email address.")
    form.Contact0Email.focus();
    return false ;
  } 
  return true ;
}