[jQuery] jQuery.extend not working for function as target,is it a bug?

[jQuery] jQuery.extend not working for function as target,is it a bug?


/*
* jQuery 1.2.1 - New Wave Javascript
*
* Copyright (c) 2007 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2007-11-29 07:53:54 +0800 (星期四, 29 十一月 2007) $
* $Rev: 3973 $
*/
the jQuery reversion is #3973,function can't extend with
jQuery.extend.
function target(){
/**some code here*/
}
jQuery.extend(target,{
someMethod:function(){
/** some code here */
}
});
alert(typeof target.someMethod); // type of target.someMethod is
undefined