function hide_ele(){
if(document.getElementById('b1').checked == true){
	document.getElementById('bb1').style.display = 'block';
	document.getElementById('bb2').style.display = 'none';
	}
if(document.getElementById('b2').checked == true){
	document.getElementById('bb1').style.display = 'none';
	document.getElementById('bb2').style.display = 'block';
	}
}


function open_win(a,b){
  var w_url = 'child_html?place=' + a + '&my_id=' + b;
  window.open(w_url, "img_up", "width=250,height=200");
}

//
function num_check(mode){
	if(mode == 'cart'){
		str = document.getElementById('m_nu').value;
	}else{
		str = document.getElementById(mode).value;
	}
	if( str.match( /[^0-9０-９]+/ ) ) {
		window.alert("数量は数字のみ入力してください");
		return false;
	}
}


//▼ボタンロールオーバー
function Rollover() {
	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", Rollover, false);

}
else if(window.attachEvent) {
	window.attachEvent("onload", Rollover);

}