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

function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
 }
}

function validate_phone(field)
{
var re = new RegExp(/^[0-9]\d{2}-\d{3}-\d{4}$/);
with (field)
{
    if (field.value.match(re))
       return true;
    else
    {alert("Please fill out phone number using xxx-xxx-xxxx!");return false;} 
  }
}

function validate_form(thisform)
{
var msg1="Please fill out first name!";
var msg2="Please fill out last name!";
var msg3="Please fill out e-mail!";
var msg4="Invalid email format!";
var msg5="Please fill out phone number!";
var msg6="Please select a state!";

with (thisform)
{
  if (thisform.firstname.value=="First Name")
  {alert(msg1);firstname.focus();return false;}
  if (validate_required(firstname,msg1)==false)
  {firstname.focus();return false;}

  if (thisform.lastname.value=="Last Name")
  {alert(msg2);lastname.focus();return false;}
  if (validate_required(lastname, msg2)==false)
  {lastname.focus(); return false;}

  if (thisform.email.value=="Email")
  {alert(msg3);email.focus();return false;}
  if (validate_required(email, msg3)==false)
  {email.focus();return false;}
  if (validate_email(email, msg4)==false)
  {email.focus();return false;}

  if (phone.value=="Phone")
  {alert(msg5);phone.focus();return false;} 
  if (validate_required(phone, msg5)==false)
  {phone.focus();return false;}
  if (validate_phone(phone)==false)
  {phone.focus();return false;}

  if (state_picked.value=="State")
  {alert(msg6);state_picked.focus();return false;}
  if (validate_required(state_picked, msg6)==false)
  {state_picked.focus();return false;}
  }
}

function validate_form2(thisform)
{
var msg1="Please fill out first name!";
var msg2="Please fill out last name!";
var msg3="Please fill out e-mail!";
var msg4="Invalid email format!";
var msg5="Please fill out phone number!";
var msg6="Please select a state!";

with (thisform)
{
  if (thisform.firstname.value=="First Name")
  {alert(msg1);firstname.focus();return false;}
  if (validate_required(firstname,msg1)==false)
  {firstname.focus();return false;}

  if (thisform.lastname.value=="Last Name")
  {alert(msg2);lastname.focus();return false;}
  if (validate_required(lastname, msg2)==false)
  {lastname.focus(); return false;}

  if (thisform.email.value=="Email")
  {alert(msg3);email.focus();return false;}
  if (validate_required(email, msg3)==false)
  {email.focus();return false;}
  if (validate_email(email, msg4)==false)
  {email.focus();return false;}

  if (phone.value=="Phone")
  {alert(msg5);phone.focus();return false;}
  if (validate_required(phone, msg5)==false)
  {phone.focus();return false;}
  if (validate_phone(phone)==false)
  {phone.focus();return false;}

  if (state_picked.value=="State")
  {alert(msg6);state_picked.focus();return false;}
  if (validate_required(state_picked, msg6)==false)
  {state_picked.focus();return false;}
  }
  alert("Thank you for requesting a copy of the white paper. We will e-mail you a copy shortly.");
}