agent = navigator.userAgent;  
yes = 0;  
if(agent.substring(0,7) == "Mozilla")    {    if( parseInt(agent.substring(8,9)) >= 3)	  {	  yes = 1;	  }    }  if(yes)    {	      pm1n = new Image();      pm1n.src = "./images/menu1_off.gif";      pm1h = new Image();      pm1h.src = "./images/menu1_on.gif";         pm2n = new Image();      pm2n.src = "./images/menu2_off.gif";      pm2h = new Image();      pm2h.src = "./images/menu2_on.gif";         pm3n = new Image();      pm3n.src = "./images/menu3_off.gif";      pm3h = new Image();      pm3h.src = "./images/menu3_on.gif";         pm4n = new Image();      pm4n.src = "./images/menu4_off.gif";      pm4h = new Image();      pm4h.src = "./images/menu4_on.gif";         pm5n = new Image();      pm5n.src = "./images/menu5_off.gif";      pm5h = new Image();      pm5h.src = "./images/menu5_on.gif";         pm6n = new Image();      pm6n.src = "./images/menu6_off.gif";      pm6h = new Image();      pm6h.src = "./images/menu6_on.gif";         pm7n = new Image();      pm7n.src = "./images/menu7_off.gif";      pm7h = new Image();      pm7h.src = "./images/menu7_on.gif";          pm8n = new Image();      pm8n.src = "./images/menu8_off.gif";      pm8h = new Image();      pm8h.src = "./images/menu8_on.gif";         pm9n = new Image();      pm9n.src = "./images/menu9_off.gif";      pm9h = new Image();      pm9h.src = "./images/menu9_on.gif";         pm10n = new Image();      pm10n.src = "./images/menu10_off.gif";      pm10h = new Image();      pm10h.src = "./images/menu10_on.gif";         pm11n = new Image();      pm11n.src = "./images/menu11_off.gif";      pm11h = new Image();      pm11h.src = "./images/menu11_on.gif";         pm12n = new Image();      pm12n.src = "./images/menu12_off.gif";      pm12h = new Image();      pm12h.src = "./images/menu12_on.gif";         pm13n = new Image();      pm13n.src = "./images/menu13_off.gif";      pm13h = new Image();      pm13h.src = "./images/menu13_on.gif";	  	}
   function CI(imgNum,imgName)    {	 if(yes)	   { 	  document.images[imgNum].src = eval(imgName + ".src")	   }   }