if (navigator.appVersion > "3") {
		img0 = new Image();img0.src="/pict/top_mail002.jpg";
		img1 = new Image();img1.src="/pict/top_mail003.jpg";

		}
	function imgChange(imgName,imgNum){
		if (navigator.appVersion > "3"){
			document.images[imgName].src=eval(imgNum + '.src');
		}
	}