var browserName = false; 
 var ua = navigator.userAgent.toLowerCase(); 
 
 if (( ua.indexOf( "safari" ) != -1 || ua.indexOf( "firefox" ) != -1))// && (ua.indexOf( "chrome" ) == -1))
 { 
 browserName = true; 
 } 
 
 if (browserName)
 document.write('<link rel="stylesheet" href="/files/system/css/CCi08_LIClean_dropdown_Safari.css" type="text/css" ></link>');