function handle(delta) {
	if (delta < 0){
		showBoutique('boutique','down');
	}else{
		showBoutique('boutique','up');
	}
}

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){
		handle(delta);
        if (event.preventDefault){
                event.preventDefault();
		}
        event.returnValue = false;
	}
}

/* Initialization code. */
function initMouseWheel(obj){
	if (window.addEventListener){
		window.addEventListener('DOMMouseScroll', wheel, false);
		obj.addEventListener('DOMMouseScroll', wheel, false);
	}else{
		window.attachEvent("onmousewheel", wheel);
		document.attachEvent("onmousewheel", wheel);
		obj.attachEvent("onmousewheel", wheel);
	}
}
function exitMouseWheel(obj){
	if (window.addEventListener){
		window.removeEventListener('DOMMouseScroll', wheel, false);
		obj.removeEventListener('DOMMouseScroll', wheel, false);
	}else{
		window.detachEvent("onmousewheel", wheel);
		document.detachEvent("onmousewheel", wheel);
		obj.detachEvent("onmousewheel", wheel);
	}
}