Comment 8 for bug 1125220

As I said, "Probably a script contains an onblur() somewhere when it should be onchange()". <https://developer.mozilla.org/en-US/docs/DOM/element.onchange#Notes> shows that onchange() fires only when the field loses focus *and* its contents have changed, which is what we want.

I like the idea of having the graph and table update when you press Enter too. Spec updated. <https://wiki.ubuntu.com/ErrorTracker?action=diff&rev2=154&rev1=153>