isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
	NS4 = (document.layers) ? true : false;
	IEmac = ((document.all)&&(isMac)) ? true : false;
	IE4plus = (document.all) ? true : false;
	IE4 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 4.")!=-1)) ? true : false;
	IE5 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 5.")!=-1)) ? true : false;
	IE6 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 6.")!=-1)) ? true : false;
	ver4 = (NS4 || IE4plus) ? true : false;
	NS6 = (!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1)?true:false;
	NS7 = (!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1)?true:false;
	IE5plus = IE5 || IE6;
	IEMajor = 0;
	if (IE4plus)
	{ 
var start = navigator.appVersion.indexOf("MSIE");
var end = navigator.appVersion.indexOf(".",start);
IEMajor = parseInt(navigator.appVersion.substring(start+5,end));
IE5plus = (IEMajor>=5) ? true : false;
}
	if (IE4plus && isMac) {
	document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ie_style.css TYPE=text/css>");
	} else if (IE4plus && !isMac) {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ie_style.css TYPE=text/css>");
	} else if (NS4 && isMac) {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ns_style.css TYPE=text/css>");
	} else if (NS4 && !isMac) {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ns_style.css TYPE=text/css>");
	} else if (NS6) {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ns_style.css TYPE=text/css>");
	} else if (NS7) {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ns_style.css TYPE=text/css>");
	} else {
		document.write("<LINK rel=stylesheet href=http://www.crm2day.com/system_docs/css/ie_style.css TYPE=text/css>");
	}