var mgobj;
function mailmaga(obj,kind) { 
	if(obj.value == ""){
		alert('メール住所を入力してください。');
		return;
	}
	
	mgobj = obj;

	var url = "/ajax/ajax_mailmaga.php"
	+ "?c_mail=" + obj.value + "&kind=" + encodeURIComponent(kind);

	req.open("GET", url, true); 
	req.onreadystatechange = mailmaga_result;    //Callbake Function 
	req.send(null);     
}

function mailmaga_result() { 

  if (req.readyState == 4 ) { 
    if (req.status == 200) {    //200 OK
      alert(req.responseText);    //URL action response TEXT
	  if(req.responseText != ""){
		mgobj.value = "";
	  }
	  
    } else ajax_error(req.getResponseHeader("Status"));
  } 
}