//USE02

/* super simple browser (v5+) detection */

ie5 = (document.all && document.getElementById);
ns6 = (!document.all && document.getElementById);

mac = (navigator.appVersion.indexOf("Mac") != -1); //for some exploder cases
safari = (navigator.appVersion.indexOf("Safari") != -1); //until final release

//alert old browsers
if (!document.getElementById) alert('you need a version 5+ browser.\n\n(netscape 6+, explorer 5+, or any W3C standards-compliant browser)');