function calling
<p>May be a simple question to solve...
On button click I call a function on the include file and parse a function name (b). Why b is not a function ?
I have the following files (only a sample of the issue):</p>

<h2>comum.js</h2>

<pre><code>function f(b){
    var a = eval(b +'();');
}

function a(v){
    $.ajax({url:'update.aspx',
            data: 'q=5',
            success: function(){
                f(v);
            }   
    });
}
</code></pre>

<h2>default.html</h2>

<pre><code>&lt;html&gt;
&lt;head&gt;
&lt;title&gt;&lt;/title&gt;
&lt;script type="text/javascript" src="jquery.js"&gt;&lt;/script&gt;
&lt;script type="text/javascript" src="comum.js"&gt;&lt;/script&gt;
&lt;script language="JavaScript" type="text/javascript"&gt;
    $(function(){
        $("#me").click(function(){
            a('b');
        });
    });

    function b(){
        $("#me").attr("disabled","disabled");
    }
&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;input type="button" id="me" value="click me" /&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
