IT개발/HTML CSS Javascript2010. 8. 24. 01:39
<script language="javascript" type="text/javascript" >
// 1. 숫자만 입력받게 하는 방법
function onlyNumber() {
if ((event.keyCode < 48) || (event.keyCode > 57))
event.returnValue = false;
}
function CheckForm() {
if (document.getElementById("txtMobile1").value == "") {
window.alert("휴대폰 번호를 선택하시오.");
return false;
}
if (document.getElementById("txtMobile2").value.length != 4) {
window.alert("가운데 번호는 4자리로 입력하세요");
}
}
</script>
휴대폰 번호:
<select id="txtMobile1">
<option value="">::선택::</option>
<option value="011">011</option>
<option value="016">016</option>
<option value="017">017</option>
<option value="019">019</option>
<option value="010">010</option>
</select>
<input type="text" id="txtMobile2" size="4" onkeypress="onlyNumber();" />
<input type="text" id="txtMobile3" size="4" />
<input type="button" value="가입" onclick="CheckForm();" />