agent = navigator.userAgent.toLowerCase();
ns = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)));
ie = (agent.indexOf("msie") != -1);
mac = (agent.indexOf("mac") != -1);

if (ie && !mac) {
	document.write('<link rel="stylesheet" href="http://www.persoenlich.com/style-iepc.css">');
} else {
	document.write('<link rel="stylesheet" href="http://www.persoenlich.com/style-public.css">');
}