function checkform() {
  for (i=0;i<fieldstocheck.length;i++) {
    if (eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].value") == "") {
      alert("入力してください： "+fieldnames[i]);
      eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].focus()");
      return false;
    }
  }
 
  if(! compareEmail())
  {
    alert("入力した電子メールアドレスがマッチしません。");
    return false;
  }
  return true;
}
 
var fieldstocheck = new Array();
var fieldnames = new Array();
function addFieldToCheck(value,name) {
  fieldstocheck[fieldstocheck.length] = value;
  fieldnames[fieldnames.length] = name;
}
 
function compareEmail()
{
  return (document.subscribeform.elements["email"].value == document.subscribeform.elements["email2"].value);
}