var isNS = (document.layers); var isNS6=(document.getElementById && (! document.all)); var isIE=(document.getElementById && document.all); var pltfrm = navigator.userAgent.toLowerCase(); var isMac = (pltfrm.indexOf("mac")>-1); var useCSS; if (isMac) { if (isNS) {useCSS = "mac_ns"} else {useCSS = "mac_ie"} } else { if (isNS) {useCSS = "win_ns"} else if (isNS6) {useCSS = "win_ns6"} else { useCSS = "win_ie"} } // to fix bug with NS4.0X and the onresize event handler if ((isNS)||(isNS6)) { origWidth=innerWidth; origHeight=innerHeight; onresize=function(){ if (innerWidth!=origWidth||innerHeight!=origHeight) location.reload() } }