document.addEventListener('DOMContentLoaded', function() {
var elem = document.getElementById('js-travel-eventpage-campaign-message');
elem.innerHTML = '<strong>函館</strong>に到着した方の中から抽選で１０名様に<br><strong>うに屋むらかみ　氷凍生うに（５，４００円相当）</strong>を贈呈';
});