// The appearance of XUL elements is platform-specific, so we set the // style of the root element according to the platform, so that the // CSS code inside input.css can select the correct styles for each // platform. var id; var ua = navigator.userAgent; if (/Windows/.test(ua)) id = "win"; else if (/Linux/.test(ua)) id = "linux"; else if (/Mac OS X/.test(ua)) id = "mac"; if (id) document.documentElement.setAttribute("id", id); else document.documentElement.appendChild( document.createTextNode("Unrecognized platform") );