IE:fixing innerHTML - ajax callback

innerHTML can cause some problems, particularly in Internet Explorer. If you use innerHTML to add or update form elements, all sorts of screwiness can occur. Sometimes the data from the newly added elements won’t be included when the form is submitted to the server. This is a solution that works in IE:

var newdiv = document.createElement("div");
newdiv.innerHTML = xhr.responseText;
var container = document.getElementById("container");
container.appendChild(newdiv);