Updating html content dynamically: I can't get jquerymobile styles applied on dynamically generated content, such as buttons

Updating html content dynamically: I can't get jquerymobile styles applied on dynamically generated content, such as buttons

document.getElementById("REQLIST").innerHTML =" <input type=\"text\" size=\"30\" onclick=\"stop_chat_update()\" onchange=\"stop_chat_update(); \"   name=\"ChatInput\" id=\"CHATIN\" style=\"font-size: 22pt;\" />";

document.getElementById("REQLIST").innerHTML +="<input type=\"button\" onClick=\"update_chat_with_user()\"  value=\"Update\">";