IsHTML4Ok = 
	(((navigator.appName == "Netscape") && 
	(parseInt(navigator.appVersion) >= 3 )) || 
	((navigator.appName == "Microsoft Internet Explorer") && 
	(parseInt(navigator.appVersion) >= 4 )));

    if (document.images)
    { 
    
         line11 = new Image();
         line11.src = "images/line11.jpg"; 
         line12 = new Image();
         line12.src = "images/line12.jpg"; 
         line21 = new Image();
         line21.src = "images/line21.jpg"; 
         line23 = new Image();
         line23.src = "images/line23.jpg"; 
         line31 = new Image();
         line31.src = "images/line31.jpg";          
                                            
         menu1 = new Image();
         menu1.src = "images/home.jpg";     
         menu1on = new Image();
         menu1on.src = "images/homeon.jpg"; 
         
         menu2 = new Image();
         menu2.src = "images/whoweare.jpg";                            
         menu2on = new Image();
         menu2on.src = "images/whoweareon.jpg";   
               
         menu3 = new Image();
         menu3.src = "images/services.jpg" ;                 
         menu3on = new Image();
         menu3on.src = "images/serviceson.jpg";
         
         menu4 = new Image();
         menu4.src = "images/certificate.jpg";
         menu4on = new Image();
         menu4on.src = "images/certificateon.jpg" ;   
         
         menu5 = new Image();
         menu5.src = "images/email.gif";
         menu5on = new Image();
         menu5on.src = "images/emailon.gif" ;   
                         
    } 
       
    function Swap(on,out) {
    
        temp = "menu" + on;
        
        if (out)  document.images[temp].src=eval(temp + "on.src");
        else      document.images[temp].src=eval(temp + ".src");
                 
    }