Another way would be to use observer pattern.
...
onSuccess: function(t) {
// fire global event passing evaluated JSON
document.fire('recordCount:received', { recordCount:
t.responseText.evalJSON() });
}
...
// the function will now fire event once data is received
this.getRecordCount();
// subscribe myOtherFunction to this event
document.observe('recordCount:received', myOtherFunction)
...
// the data which was carried within event is available via "memo"
myOtherFunction(e) {
e.memo.recordCount;
}
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