function formValidator(theForm)
{
  var error = "";
  var space = " ";

  for (var i = 0; i < theForm.first_name.value.length; i++) {temp = theForm.first_name.value.substring(i, i+1);
    if (temp == space && theForm.first_name.value != "") {error += "Error: The first name field cannot contain any spaces.\n"; break;}
  }
  for (var i = 0; i < theForm.last_name.value.length; i++) {temp = theForm.last_name.value.substring(i, i+1);
    if (temp == space && theForm.last_name.value != "") {error += "Error: The last name field cannot contain any spaces.\n"; break;}
  }
  for (var i = 0; i < theForm.email.value.length; i++) {temp = theForm.email.value.substring(i, i+1);
    if (temp == space && theForm.email.value != "") {error += "Error: The email field cannot contain any spaces.\n"; break;}
  }
  if (theForm.first_name.value == "") {error += "Error: Please fill in your first name.\n";}
  if (theForm.last_name.value == "") {error += "Error: Please fill in your last name.\n";}
  if (theForm.email.value == "") {error += "Error: You must include an accurate email address for a response.\n";}
  if ((theForm.email.value.indexOf ('@',0) == -1 || theForm.email.value.indexOf ('.',0) == -1) && theForm.email.value != "") {error += "Error: Please verify that your email address is valid.";}
  if (theForm.first_name.value.toLowerCase() == theForm.last_name.value.toLowerCase()) {error += "same_name";}
  if (theForm.thetext.value.toLowerCase().indexOf('viagra') > -1 || theForm.thetext.value.toLowerCase().indexOf('medication') > -1 || theForm.thetext.value.toLowerCase().indexOf('http') > -1) {error += "bad_word";}
  if (error.indexOf('same_name',0) > -1 || error.indexOf('bad_word',0) > -1) {return (false);}
  else if (error != "") {alert(error);return (false);} 
  else {return (true);}  
}