AJAX - Server Response

The readyState property holds the status of the XMLHttpRequest.
0: request not initialized
1: server connection established
2: request received
3: processing request
4: request finished and response is ready

The onreadystatechange property defines a function to be executed when the readyState changes.

The status property and the statusText property holds the status of the XMLHttpRequest object.
status 200: "OK"
403: "Forbidden"
404: "Page not found"
502: "Bad Gateway"

statusText Returns the status-text (e.g. "OK" or "Not Found")



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