var app = navigator.appName.charAt(0);
var ver = navigator.appVersion.charAt(0);

// デジタルカタログ
function newWin1(uri,pageNum,winName,features){
 if ( (app == "N" && ver > 2) || (app == "M" && ver > 3) ) {
  var PW1;
 PW1 = window.open(uri+"?page_num="+pageNum,winName,features);
 PW1.focus();
 return false;
 } else {
  return true;
 }
}