jquery - Why this event is not fired on fiddle? -

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this code! don't know why addtrack not recognized :

<input type="submit" onclick="addtrack(this);return false" value=" add ">  function addtrack(param) {     alert("ciao"); }

error : uncaught referenceerror: addtrack not defined

set script insertion mode no wrap (head) instead of onload , work expected.

updated fiddle here.


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