function validateFields()
{

     with (document.regForm) {


if (last_name.value.length < 1) {
        last_name.focus();
        alert( "Please enter your child's last name." );
  	return false;
      }
	  
if (first_name.value.length < 1) {
        first_name.focus();
        alert( "Please enter your child's first name." );
  	return false;
      }

if (parent_name.value.length < 1) {
        parent_name.focus();
        alert( "Please enter your name." );
  	return false;
      }
	  


if (age.value.length < 1) {
        age.focus();
        alert( "Please enter your child's age." );
  	return false;
      }
	  
	if (phone.value.length < 1) {
        phone.focus();
        alert( "Please enter your phone number." );
 	return false;
     }
	  
	if (email.value.length < 1) {
        email.focus();
        alert( "Please enter your email address." );
 	return false;
     }
	if (address.value.length < 1) {
        address.focus();
        alert( "Please enter your postal address." );
 	return false;
     }

	if (city.value.length < 1) {
        city.focus();
        alert( "Please enter your city." );
 	return false;
     }
	 
	  }//end with

	  return true;

}