onkeypress='return /^\d$/.test(String.fromCharCode(event.keyCode||event.keycode||event.which))'
oninput='this.value = this.value.replace(/\D+/g, "")'
onpropertychange='if(!/\D+/.test(this.value)){return;};this.value=this.value.replace(/\D+/g, "")'
onblur='this.value = this.value.replace(/\D+/g, "")'
