if (navigator.appVersion > "3") {
	img0 = new Image(); img0.src = "imgs/left_bt01.gif";
	img1 = new Image(); img1.src = "imgs/left_bt01v.gif";
	img2 = new Image(); img2.src = "imgs/left_bt02.gif";
	img3 = new Image(); img3.src = "imgs/left_bt02v.gif";
	img4 = new Image(); img4.src = "imgs/left_bt03.gif";
	img5 = new Image(); img5.src = "imgs/left_bt03v.gif";
	img6 = new Image(); img6.src = "imgs/left_bt04.gif";
	img7 = new Image(); img7.src = "imgs/left_bt04v.gif";
	img8 = new Image(); img8.src = "imgs/left_bt05.gif";
	img9 = new Image(); img9.src = "imgs/left_bt05v.gif";
}
function imgChange(imgName,imgNum) {
if (navigator.appVersion > "3") {
document.images[imgName].src = eval(imgNum + ".src");
}}