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firstly please review a code sample below .
<html><head><script src="http://code.jquery.com/jquery-1.9.1.js"></script><script type="text/javascript">/**/$(function(){var baseObj=function(){this.firstname="joe";this.lastname="wang";};var childObj=function(){this.firstname="wq";};var b= new baseObj();var c = new childObj();baseObj.call(c);alert(c.firstname);});</script></head><body></body></html>
the output is "joe" instead of the "wq".
so, found the mystery the call ?
see also:
http://stackoverflow.com/questions/4166616/understanding-the-difference-between-object-create-and-new-somefunction-in-j
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