<!--//

browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion); 

if (browser_name == "Netscape" && browser_version >= 3.0) { roll = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { roll = 'true'; }
else { roll = 'false'; }


if (roll == 'true') 
{
        button1=new Image();    
        button2=new Image();    
        button3=new Image();
        button4=new Image();
        button5=new Image();
        button6=new Image();
        button7=new Image();
        button8=new Image();
        button9=new Image();
        button10=new Image();


        button11=new Image();    
        button12=new Image();    
        button13=new Image();
        button14=new Image();
        button15=new Image();
        button16=new Image();
        button17=new Image();
        button18=new Image();
        button19=new Image();
        button20=new Image();         

 	button1.src="images/nav1s.gif";
 	button2.src="images/nav2s.gif";
 	button3.src="images/nav3s.gif";
 	button4.src="images/nav4s.gif";
 	button5.src="images/nav5s.gif";
 	button6.src="images/nav6s.gif";
 	button7.src="images/nav7s.gif";
 	button8.src="images/nav8s.gif";
 	button9.src="images/nav9s.gif";
 	button10.src="images/nav10s.gif";

 	button11.src="images/nav1btn.gif";       
 	button12.src="images/nav2btn.gif";
 	button13.src="images/nav3btn.gif";
 	button14.src="images/nav4btn.gif";
 	button15.src="images/nav5btn.gif";
 	button16.src="images/nav6btn.gif";
 	button17.src="images/nav7btn.gif";
 	button18.src="images/nav8btn.gif";
 	button19.src="images/nav9btn.gif";
 	button20.src="images/nav10btn.gif";
  
     
}
// -->