//オープンウィンドウ
function openwin(url) {
 /* 横幅630px、縦幅600pxのウインドウを開く */
 w = window.open(url, 'win','width=630,height=600,status=no,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=no');
}



//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);
}