var FL_wheelEnabled = true;

function FL_wheelToggle(flg){
  FL_wheelEnabled = flg;
}

function FL_wheel(event){
  if(!FL_wheelEnabled){
  	
    if(!event) event = window.event;//ie用

    if(event.preventDefault){
      event.preventDefault();
    }
    
   	event.returnValue = false;
  }
}
//とりあいずmacはなし
if(navigator.appVersion.toLowerCase().indexOf( "mac" ) == -1){
	if(window.addEventListener){
	  window.addEventListener('DOMMouseScroll', FL_wheel, false);
	}
	window.onmousewheel = document.onmousewheel = FL_wheel;
}