function style(){
	var agt=navigator.userAgent.toLowerCase();

	// *** PLATFORM ***
	var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
	var is_mac    = (agt.indexOf("mac")!=-1);

	if (is_mac == true) {
		document.write("<link rel='stylesheet' type='text/css' href='/styles/mac.css' title='styles'>");
	}	
	else if (is_win == true) {
    document.write("<link rel='stylesheet' type='text/css' href='/styles/default.css' title='styles'>");
	}
}