// 初期化
function init() {
	window.setInterval("interval();", 100);
}
function interval() {
	var nowDate = new Date();
	var min = nowDate.getMinutes();
	if (min=='0') {
		show();
	}else{
		show();
		//hide();
	}
}
function show(){
	var tooltip = document.getElementById("tt");
	if(tooltip.style.visibility == "hidden"){
		tooltip.style.visibility = "visible";
		document.getElementById("kuma").href = "uchu-jin.html";
		document.getElementById("kuma").style.cursor = "pointer";
	}
}
function hide(){
	var tooltip = document.getElementById("tt");
	if(tooltip.style.visibility != "hidden"){
		tooltip.style.visibility = "hidden";
		document.getElementById("kuma").href = null;
		document.getElementById("kuma").style.cursor = "default";
	}
}