$(document).ready(function () {
	$(".integer").keydown(function (event) {
		if (!(event.keyCode >= 48 && event.keyCode <= 57) && !(event.keyCode >= 96 && event.keyCode <= 105)) // 0-9 or numpad 0-9 
		{
			if (event.keyCode != 8 && event.keyCode != 46 && event.keyCode != 37 && event.keyCode != 39) // not esc, del, left or right 
			{
				event.preventDefault();
			}
		}
	});
});