function wheel( event )
{
	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 / 2 );
	}
	if(delta){
		swfName(mw_flashMovieId).scrollMouse(delta);
	}
}

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]
	}
}