function check(){ 
var flag = 0; 
if(document.form1.sei.value == ""){  
flag = 1; 
} 
else if(document.form1.mail.value == ""){ 
flag = 1; 
} 

if(flag){ 
alert('苗字・メールアドレスの両方を入力してください');
return false; // 送信を中止 
} 
else{ 
sav_cook('cookie1')
return true; // 送信を実行 
} 

} 


function check2(){ 
var flag = 0; 
if(document.form2.sei.value == ""){  
flag = 1; 
} 
else if(document.form2.mail.value == ""){ 
flag = 1; 
} 

if(flag){ 
alert('苗字・メールアドレスの両方を入力してください');
return false; // 送信を中止 
} 
else{ 
sav_cook2('cookie1')
return true; // 送信を実行 
} 

} 


function check3(){ 
var flag = 0; 
if(document.form3.sei.value == ""){  
flag = 1; 
} 
else if(document.form3.mail.value == ""){ 
flag = 1; 
} 

if(flag){ 
alert('苗字・メールアドレスの両方を入力してください');
return false; // 送信を中止 
} 
else{ 
sav_cook3('cookie1')
return true; // 送信を実行 
} 

} 



function get_cook(coknam) {
  coktxt = document.cookie+";";
  stano = coktxt.indexOf(coknam);
  if (stano != -1){
    endno = coktxt.indexOf(";",stano);
    txt0 = unescape(coktxt.substring(stano+coknam.length+1,endno));
  }else{
    txt0 = "";
  }
  return txt0;
}

function sav_cook(coknam) {
  txt0 = document.form1.sei.value;
  day0 = new Date();
  day0.setTime(day0.getTime()+60*60*24*1000);
  endday = day0.toGMTString();
  document.cookie = coknam+"="+escape(txt0)+";expires="+endday;
}
function sav_cook2(coknam) {
  txt0 = document.form2.sei.value;
  day0 = new Date();
  day0.setTime(day0.getTime()+60*60*24*1000);
  endday = day0.toGMTString();
  document.cookie = coknam+"="+escape(txt0)+";expires="+endday;
}

function sav_cook3(coknam) {
  txt0 = document.form3.sei.value;
  day0 = new Date();
  day0.setTime(day0.getTime()+60*60*24*1000);
  endday = day0.toGMTString();
  document.cookie = coknam+"="+escape(txt0)+";expires="+endday;
}