//ロールオーバー
function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}
if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}

// 画像ランダム表示する
function drawRandomImg(){
    img = new Array();
	img[0] = "imgs/p_topimg01.jpg";
	img[1] = "imgs/p_topimg02.jpg";
	img[2] = "imgs/p_topimg03.jpg";
	n = Math.floor(Math.random()*img.length);
	document.write("<img src='"+img[n]+"' width='800' height='300' />");
}

//不要な時間表示の削除
function timecut(){
var area = document.getElementById("maincol");
var para = area.getElementsByTagName("p");
len = para.length;
	for(i = 0; i < len; i++){
		sStr = para[i].innerHTML;
		afttxt = sStr.replace("00:00","");
		para[i].innerHTML = afttxt;
	} 
}