font switcher

I was wondering if anyone knows how or what i might use to have a font size switcher on my site. I was thinking of using the style switcher but it says to look for
@import url( <?php echo $siteurl; ?>/wp-layout.css );
and all I have in my index is
link rel=”stylesheet” type=”text/css” href=”wp-layoutcss.css”
so I dunno if i can use it. Maybe theres somthign else I can try instead…any ideas?