if(navigator.appVersion.charAt(0) >=3){
img = new Array();
img[1] = new Image(); img[1].src="red_point.gif";
img[2] = new Image(); img[2].src="yellow_point.gif";
}
function _in(nam, num){
	if(navigator.appVersion.charAt(0) >=3){
	document.images[nam].src = img[num].src;
	}
}
function _out(nam, num){
	document.images[nam].src = img[num].src;
}