if(document.images){
	var img0on = new Image();
	img0on.src = "img/btn_tp_on.gif";
	var img0off = new Image();
	img0off.src = "img/btn_tp_off.gif";

	var img1on = new Image();
	img1on.src = "img/btn_menu1_on.gif";
	var img1off = new Image();
	img1off.src = "img/btn_menu1_off.gif";

	var img2on = new Image();
	img2on.src = "img/btn_menu2_on.gif";
	var img2off = new Image();
	img2off.src = "img/btn_menu2_off.gif";

	var img3on = new Image();
	img3on.src = "img/btn_menu3_on.gif";
	var img3off = new Image();
	img3off.src = "img/btn_menu3_off.gif";

	var img4on = new Image();
	img4on.src = "img/btn_menu4_on.gif";
	var img4off = new Image();
	img4off.src = "img/btn_menu4_off.gif";

	var img5on = new Image();
	img5on.src = "img/btn_menu5_on.gif";
	var img5off = new Image();
	img5off.src = "img/btn_menu5_off.gif";

	var img6on = new Image();
	img6on.src = "img/btn_menu6_on.gif";
	var img6off = new Image();
	img6off.src = "img/btn_menu6_off.gif";

	var img7on = new Image();
	img7on.src = "img/btn_menu7_on.gif";
	var img7off = new Image();
	img7off.src = "img/btn_menu7_off.gif";

	var img8on = new Image();
	img8on.src = "img/btn_menu8_on.gif";
	var img8off = new Image();
	img8off.src = "img/btn_menu8_off.gif";

	var img9on = new Image();
	img9on.src = "img/btn_menu9_on.gif";
	var img9off = new Image();
	img9off.src = "img/btn_menu9_off.gif";

	var img10on = new Image();
	img10on.src = "img/btn_menu10_on.gif";
	var img10off = new Image();
	img10off.src = "img/btn_menu10_off.gif";

	var img11on = new Image();
	img11on.src = "img/btn_menu11_on.gif";
	var img11off = new Image();
	img11off.src = "img/btn_menu11_off.gif";

	var img12on = new Image();
	img12on.src = "img/btn_menu12_on.gif";
	var img12off = new Image();
	img12off.src = "img/btn_menu12_off.gif";

	var img13on = new Image();
	img13on.src = "img/btn_menu13_on.gif";
	var img13off = new Image();
	img13off.src = "img/btn_menu13_off.gif";

}
function On(name){
	if(document.images){
		document.images[name].src = eval(name + 'on.src');
	}
}
function Off(name){
	if(document.images){
		document.images[name].src = eval(name + 'off.src');
	}
}