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<A HREF="https://javaserverfaces.dev.java.net/nonav/docs/2.0/pdldocs/facelets/f/ajax.html">https://javaserverfaces.dev.java.net/nonav/docs/2.0/pdldocs/facelets/f/ajax.html</A><BR>
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See the "onerror" attribute<BR>
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There is an extra 'e' -> "oneerror"
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