Jquery Only Allow Numbers in a HTML text field

$(document).ready(function() {
		$("#TextFieldID").keydown(function (e) {
			// Allow: backspace, delete, tab, escape, enter and .
			if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
				 // Allow: Ctrl+A, Command+A
				(e.keyCode === 65 && (e.ctrlKey === true || e.metaKey === true)) || 
				 // Allow: home, end, left, right, down, up
				(e.keyCode >= 35 && e.keyCode <= 40)) {
					 // let it happen, don't do anything
					 return;
			}
			// Ensure that it is a number and stop the keypress
			if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
				e.preventDefault();
			}
		});
	});

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