if  (navigator.platform=="Win32"){
	if( navigator.appName.charAt(0)=="N" ){ 
		document.write('<link rel="stylesheet" type="text/css" href="css_js/c_wn.css">');
	}
	if( navigator.appName.charAt(0)=="M" ){ 
		document.write('<link rel="stylesheet" type="text/css" href="css_js/c_wm.css">');
	}
}
if  (navigator.platform=="MacPPC"){
	if( navigator.appName.charAt(0)=="N" ){ 
		document.write('<link rel="stylesheet" type="text/css" href="css_js/c_mn.css">');
	}
	if( navigator.appName.charAt(0)=="M" ){ 
		document.write('<link rel="stylesheet" type="text/css" href="css_js/c_mm.css">');
	}
}