//########image change+preload ########

	var imgBtn = new Array();

	imgBtn[101] = new Image();
	imgBtn[101].src="/images/common/b_1.gif";
	imgBtn[102] = new Image();
	imgBtn[102].src="/images/common/b_1_on.gif";

	imgBtn[201] = new Image();
	imgBtn[201] .src = "/images/common/b_2.gif";
	imgBtn[202] = new Image();
	imgBtn[202] .src = "/images/common/b_2_on.gif";

	imgBtn[301] = new Image();
	imgBtn[301] .src = "/images/common/b_3.gif";
	imgBtn[302] = new Image();
	imgBtn[302] .src = "/images/common/b_3_on.gif";

	imgBtn[401] = new Image();
	imgBtn[401] .src="/images/common/b_4.gif";
	imgBtn[402] = new Image();
	imgBtn[402] .src="/images/common/b_4_on.gif";

	imgBtn[501] = new Image();
	imgBtn[501] .src="/images/common/b_5.gif";
	imgBtn[502] = new Image();
	imgBtn[502] .src="/images/common/b_5_on.gif";

//imagesonoff
	function swapImg(name,num) {
		document.images[name].src = imgBtn[num].src;
	}