[Deff]

<script type="text/javascript">
var scroll_off = function(e) {
	e.preventDefault();
};
			
$("#disable_scroll").on("click", function () {
			if ("onmousewheel" in document) { // для всех браузерах кроме Фирефох
				document.onmousewheel = scroll_off;
			} else { // для Фирефох
				document.addEventListener('DOMMouseScroll', scroll_off);
			}
});


var scroll_on = function (e) {};
		
$("#enable_scroll").on("click", function () {
				if ("onmousewheel" in document) {
					document.onmousewheel = function(e){}
				} else {
					document.removeEventListener('DOMMouseScroll', scroll_off);
					document.addEventListener('DOMMouseScroll', scroll_on);
				}
});




</script>