<!-- 
	browser=(((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3)) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)))
    if (browser) {
             butt1on=new Image(); 
             butt1on.src="images/button1-on.gif";
             butt2on=new Image(); 
             butt2on.src="images/button2-on.gif";
             butt3on=new Image(); 
             butt3on.src="images/button3-on.gif";
             butt4on=new Image(); 
             butt4on.src="images/button4-on.gif";
             butt5on=new Image(); 
             butt5on.src="images/button5-on.gif";
             butt6on=new Image(); 
             butt6on.src="images/button6-on.gif";

             leftbutt1on=new Image(); 
             leftbutt1on.src="images/leftbutt1-on.gif";
             leftbutt2on=new Image(); 
             leftbutt2on.src="images/leftbutt2-on.gif";
             leftbutt3on=new Image(); 
             leftbutt3on.src="images/leftbutt3-on.gif";
             leftbutt4on=new Image(); 
             leftbutt4on.src="images/leftbutt4-on.gif";

             butt1off=new Image(); 
             butt1off.src="images/button1.gif";
             butt2off=new Image(); 
             butt2off.src="images/button2.gif";
             butt3off=new Image(); 
             butt3off.src="images/button3.gif";
             butt4off=new Image(); 
             butt4off.src="images/button4.gif";
             butt5off=new Image(); 
             butt5off.src="images/button5.gif";
             butt6off=new Image(); 
             butt6off.src="images/button6.gif";

             leftbutt1off=new Image(); 
             leftbutt1off.src="images/leftbutt1.gif";
             leftbutt2off=new Image(); 
             leftbutt2off.src="images/leftbutt2.gif";
             leftbutt3off=new Image(); 
             leftbutt3off.src="images/leftbutt3.gif";
             leftbutt4off=new Image(); 
             leftbutt4off.src="images/leftbutt4.gif";
	}
	
	function img_act(imgName) {
             if (browser) {
             imgOn=eval(imgName + "on.src");
             document [imgName].src=imgOn;
             }
     }

     function img_inact(imgName) {
             if (browser) {
             imgOff=eval(imgName + "off.src");
			 document [imgName].src=imgOff;
             }
     }
	// -->