영어랑 숫자만 입력하게 하기

onKeypress="if ((event.keyCode > 31 && event.keyCode < 48) || (event.keyCode > 57 && event.keyCode < 65) || (event.keyCode > 90 && event.keyCode < 97) || (event.keyCode == 126) || (event.keyCode == 22)) event.returnValue = false;"

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