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(FirstName,"First Name must be filled out!")==false)
  {FirstName.focus();return false;}
  else if (validate_required(LastName,"Last Name must be filled out!")==false)
  {LastName.focus();return false;}
  else if (validate_required(Email,"Email must be filled out!")==false)
  {Email.focus();return false;}
  else if (validate_required(Address,"Address must be filled out!")==false)
  {Address.focus();return false;}
  else if (validate_required(City,"City must be filled out!")==false)
  {City.focus();return false;}
  else if (validate_required(State,"State must be filled out!")==false)
  {State.focus();return false;}
  else if (validate_required(Zip,"Zip must be filled out!")==false)
  {Zip.focus();return false;}
  else if (validate_required(Phone,"Phone must be filled out!")==false)
  {Phone.focus();return false;}
  else if (validate_required(GroupName,"Group Name must be filled out!")==false)
  {GroupName.focus();return false;}
  else if (validate_required(Checks,"Checks Payable must be filled out!")==false)
  {Checks.focus();return false;}
  }
}