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onKeyUp event not working

 
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Dear Friends,
In the following code the removeUnsupportedChar() javascript funtion not calling when onKeyUp event fires. Why is that?



 
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It works on my machine (Safari on Mac) More specifically, I get the "hello' alert continually. Which looks like it is because onBlur is called too. Maybe textCounter() does something that prevents the code from continuing. I recommend checking your JavaScript console for errors.

 
Gihan Pandigamage
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I'll check my other JS codes. Thanks
 
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