function checkform (form1){
	
	if (form1.name.value == "") {
    alert( "Please enter your name." );
    form1.name.focus();
    return false ;
  }

if (form1.email.value == "") {
    alert( "Please enter your email address." );
    form1.email.focus();
    return false ;
  }
  
  if (form1.message.value == "") {
    alert( "Please enter your message details." );
    form1.enquiry.focus();
    return false ;
  }

  return true ;
}