only english chars

only_english_chars.js

$(".only_english_chars").on("keypress", function(event) {
	var englishAlphabetAndWhiteSpace = /[A-Za-z ]/g;
	var key = String.fromCharCode(event.which);
	if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39 || englishAlphabetAndWhiteSpace.test(key)) {
		return true;
	}
	return false;
});
$('.only_enlgish_chars').on("paste",function(e) {
	e.preventDefault();
});