- var dlg = document.getElementById("infoBox");
- var dlg_s = document.getElementById("infoBoxShadow");
-
- dlg.innerHTML = xmlhttp.responseText;
- dlg_s.style.display = "block";
- }
+ var box = document.getElementById('infoBox');
+ var shadow = document.getElementById('infoBoxShadow');
+ if (box) {
+ box.innerHTML=xmlhttp.responseText;
+ if (shadow) {
+ shadow.style.display = "block";
+ } else {
+ box.style.display = "block";
+ }
+ }
+ }