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/3;	}	if (delta)		swfName("murakami").handleScrollEvent(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]	}}