Hello. Today is little bit cold. I thought this will be a simple question, but it seen like hard to find a fast and simple solution. I am working on an online sign in tool. Two browser windows are open at the same time. One is for people to sign in with password and submit their information; another one is for Administrator to see who sign in. I am trying to refresh the Administrator page whenever user finished sign in and submitted their information. These two pages cannot be parent and child page, and will be open in multiple computers. I am new to Ajax, but many people suggest this is the best way. What will be the easiest way to solve this in Ajax? Thank you so much for your time. Have a wonderful week.