<!-- Begin
var browser_used=navigator.userAgent.toLowerCase(); 

var is_major = parseInt(navigator.appVersion); 
var is_minor = parseFloat(navigator.appVersion); 

var is_ie   = (browser_used.indexOf("msie") != -1); 
var is_mac    = (browser_used.indexOf("mac")!=-1);


var is_ie5  = (is_ie && (is_major == 4) && (browser_used.indexOf("msie 5.0")!=-1) );

var is_nav  = ((browser_used.indexOf('mozilla')!=-1) && (browser_used.indexOf('spoofer')==-1) 
                && (browser_used.indexOf('compatible') == -1) && (browser_used.indexOf('opera')==-1) 
                && (browser_used.indexOf('webtv')==-1)); 

if (is_mac)
        {
                // detect if ie5
                
                if(is_ie5)
                {                
                        document.write("<LINK REL=stylesheet HREF='ck-mac.css' TYPE='text/css'>");                 
                }
                else
                {
                        // if not load mac
                        document.write("<LINK REL=stylesheet HREF='ck-mac.css' TYPE='text/css'>");                                 
                }                
        }
        else
        {
                // if not mac then
        
                if(is_ie)
                {
                        // if ie5
                        document.write("<LINK REL=stylesheet HREF='ck-ie4.css' TYPE='text/css'>");                         
                }
                else
                {
                        // else if netscape or opera
                        document.write("<LINK REL=stylesheet HREF='ck-ns4.css' TYPE='text/css'>");                         
                }
                
                
        }

// End -->
