web page variables

I am new to Arduino ethernet coding but so far it has been great because everything works. My code is mostly slightly modified code from the Arduino examples.

However I don't understand the following.

I have the Arduino server working fine. In my code I am incrementing 3 variables using interupts. The web page uses the XMLHttpRequest() function to view the values every 5 seconds. I also have a button on the web page which sets the 3 variables to 0. This works for everyone viewing the web page. However what I expected to see was if anyone reset the counts, everyone else would see it reset also since the data is coming from the server. This is not the case. If someone sets the values to 0, the other clients do not see the change and continue with there own count values. It is like multiple instances of the variables on the server board are being created.

Anyone have a explanation for this?

Thanks in Advance.

Ok, I just found there this is not completely true. If some clients hit reset, it does show up in the view of other viewers.

I have to refine my issue a little....