Created
December 28, 2011 12:10
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Keycode handling
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| if (event.which == null) | |
| char= String.fromCharCode(event.keyCode); // old IE | |
| else if (event.which != 0 && event.charCode != 0) | |
| char= String.fromCharCode(event.which); // All others | |
| else | |
| // special key |
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http://unixpapa.com/js/key.html