interval between a ajax request and its response

[danielnp]

If the interval between a ajax request and its response the user browse to another page occurs an error that is because the server has not answered. How can I avoid this?

[ilya_shaikovsky]

Do you read anbout common optimisation attributes?
http://livedemo.exadel.com/richfaces-demo/richfaces/ajaxAttributes.jsf

If this will not helps - please specify your case more detailed step by step

[danielnp]

That is not my problem, I will explain further:
Imagine two pages: page "A" and page "B", the user is on the page "A" that has a "a4j:commandButton" (ajax send a request to the server) to implement the action to calculate a value and presents it in a "h:outputlabel" and a "h:commandbutton" that will navigate to the page "B". The user clicks on "a4j:commandButton" (ajax request) and before the server returns the response, the user clicks on the button "h:commandbutton" (not ajax request that navigate to the page "B"), at this time an error is generated because the ajax request had not ended yet. What I need is a way to inhibit any request to the server when a ajax request is in progress.

[danielnp]

HELP ME !!!