function dl_img ( img_path , lang ) {
	var langs = {
		'ja' : '製品写真を保存しますか？',
		'en' : 'Do you save a product photograph?'
	};
	for( x in langs ) {
		if( x == lang ) {
			ask = window.confirm( langs[x] );
			dl ( ask , img_path );
		}
	}
}

function dl ( ans , img_path ) {
	if( ans ) {
		window.open( img_path , '_self' );
	}
}