var sCSS=""
if (navigator.appName=="Microsoft Internet Explorer") {
	sCSS="<link rel='stylesheet' type='text/css' href='/portal/css/estilosie.css'>";
} else {
	if (parseInt(navigator.appVersion) < 5) {
		sCSS="<link rel='stylesheet' type='text/css' href='/portal/css/estilosnet.css'>";
	} else {
		sCSS="<link rel='stylesheet' type='text/css' href='/portal/css/estilosnet6.css'>";
	} 
}
document.write(sCSS)