BN = navigator.appName;
 BV = parseInt(navigator.appVersion);
 V = "n3";
 if (BN == "Netscape" && BV >= 3) V = "n3";
 else if (BN == "Microsoft Internet Explorer" && BV >= 4) V = "n3";
 else V = "n2";

 if (V == "n3") {
img = new Array(30);
for(i=1;i<9;i++){
	img[i] = new Image();
	img[i].src = "../image/tab0"+i+".gif";
	}
for(i=10;i<19;i++){
	img[i] = new Image();
	img[i].src = "../image/tab"+i+".gif";
	}
for(i=20;i<29;i++){
	img[i] = new Image();
	img[i].src = "../image/tab"+i+".gif";
	}

	function changeImage(name,imge_name){
		name.src= imge_name.src;
		return true;
	}
}