function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false}
else {return true}
}
}

function validate_form(thisform)
{
with (thisform)
{

if (validate_required(FirstNameBox,"First Name must be filled out!")==false) {FirstNameBox.focus();return false}
if (validate_required(LastNameBox,"Last Name must be filled out!")==false) {LastNameBox.focus();return false}
if (validate_required(eMailBox,"Email must be filled out!")==false) {eMailBox.focus();return false}

}
}