Someone
public text v1 · immutablevar content = document.getElementById("taggedUsers").innerHtml;
var temp1 = content.split("class=\"fieldBtnSubmit\" type=\"submit\" />");
var temp2 = "<input ... />" + temp1[1];
var output = temp1[0] + "class=\"fieldBtnSubmit\" type=\"submit\" />" + temp2;
content.innerHtml = output;