<!--isNav=false;isW3C=false;isExp=false;isOpera=false;isNOT=false;isMac=false;// Detect browser and define pre/suf-fixesbrowser=navigator.appName;version=navigator.appVersion;Vmajor=parseInt(navigator.appVersion);Vminor=parseFloat(navigator.appVersion);if (browser=="Netscape") {	if (Vmajor==4)	{		isNav=true; pre='layers.'; suf='';	}	else if (Vmajor==5)	isW3C=true;	else isNOT=true;}else if (browser=="Microsoft Internet Explorer") {		if ( version.indexOf('MSIE 5.0; Macintosh;') != -1 )  {		isExp=true;	}	// IE 4 to 5.5 return 4 as the version	else if ( (Vmajor==4) ) {		isExp=true;	}	else isNOT=true;}else if (browser=="Opera") {	if (Vmajor==4) isOpera=true;	else isNOT=true;}//-->