var d=document;

if (navigator.appName == "Netscape"){ 
  document.write('<link href="nn.css" type=text/css rel=stylesheet>');
} else { 
  document.write('<link href="ie.css" type=text/css rel=stylesheet>');
}

function loadBackground(backImage) {
	d.body.style.background = 'url(images/' + backImage + ')';
}