[jQuery] passing parameter to anonymous function ( frameready )

[Linspirell]

Hello everyone :) i'am a newcomer here :)
i have a problem with using JQuery and frameready plugin.
i need to modify dom elemen especially the css. i have a iframe in my
main document.

this is my javascript code with jquery and frameready plugin

        function changeColor(evt) {
        var color = evt.value;
                $.frameReady(function() {
                        $('h2.pagetitle').css('color', color);
                }, "common");
        }
"common" is my iframe name
this link is about frameready plugin 
http://ideamill.synaptrixgroup.com/?page_id=18

i need to pass a color value that i got from here :
<input name="page_title" id="page_title" type="text" value="#2F8BCD"
size="10" maxlength="15" onfocus="changeColor(this);"/>

but the error console always showing message ' color is not defined'

thx you...