function fSwImgS(fImgNm, fSrc) {
        document.images[fImgNm].src = fSrc
}

var ua = navigator.userAgent
var cssHTML = '<link rel="stylesheet" type="text/css" href="'
if( ua.indexOf("Win") != -1 ) cssHTML += 'css/top_news_Win.css' 
cssHTML += '">'
document.write(cssHTML)