//ブラウザのホイールの状態（初期値有効）
var _wheelEnabled = false;

//Flashから呼ばれる関数
function wheelEnabled(flg){
  _wheelEnabled = flg;
}

function wheel(event){
if(!_wheelEnabled){
	var delta = 0;
	if (!event) event = window.event;
	if (event.wheelDelta) {
		delta = event.wheelDelta/120; 
		if (window.opera) delta = -delta;
	} else if (event.detail) {
		delta = -event.detail/3;
	}
	if (delta)
		swfName("my_flash").handleScrollEvent(delta);
	
	//スクロール処理を停止	
	if (event.preventDefault) {
                event.preventDefault();
        }
        event.returnValue = false;
}
}

if (window.addEventListener)
	window.addEventListener('DOMMouseScroll', wheel, false);
window.onmousewheel = document.onmousewheel = wheel;

function swfName(str) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[str]
	}else {
    	return document[str]
	}
}