var isIE = '';

function MM_checkBrowser(NSvers,NSpass,NSnoPass,IEvers,IEpass,IEnoPass,OBpass,URL,altURL) { //v5.0
	var newURL = '', userAgent = navigator.userAgent, version = 0;
	
	if (userAgent.indexOf('Netscape') != -1) {
		version = parseFloat(userAgent.substring(userAgent.indexOf('Netscape')+9,userAgent.length));
		if (version >= NSvers) {if (NSpass>0) newURL=(NSpass==1)?URL:altURL;}
		else {if (NSnoPass>0) newURL=(NSnoPass==1)?URL:altURL;}
	} else if (userAgent.indexOf('MSIE') != -1) {
		version = parseFloat(userAgent.substring(userAgent.indexOf('MSIE')+4,userAgent.length));
		if (version >= IEvers)
		{if (IEpass>0) newURL=(IEpass==1)?URL:altURL;}
		else {if (IEnoPass>0) newURL=(IEnoPass==1)?URL:altURL;}
	} else if (OBpass>0) newURL=(OBpass==1)?URL:altURL;
	
	if (newURL) { 
		//document.writeln("<link href=\"css_ie.css\" rel=\"stylesheet\" type=\"text/css\">");
		isIE = 'true';
	}
 }

MM_checkBrowser(4.0,0,0,5.5,1,0,0,"IEcase","");