function loadCSS() {
     if((navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|wOSBrowser|BrowserNG|WebOS)/i))) {
            document.write('<link href="shouji.css" rel="stylesheet" type="text/css" media="screen" />');
     }
    else {
          document.write('<link href="pc.css" rel="stylesheet" type="text/css" media="screen" />');
    }
}
loadCSS();