if (navigator.appVersion.indexOf("Macintosh") != -1)
{
document.write('<link href="stylemac.css" rel=stylesheet type="text/css">');
}
else
{
document.write('<link href="stylepc.css" rel=stylesheet type="text/css">');
}

function openWindow(url,w,h) {
popupWin = window.open(url, 'remote', 'scrollbars,resizable,status,dependent,width=500,height=400,top=10,left=10')
}