전화번호 입력 자동 하이픈

### javascript

function OnCheckPhone(oTa) {
    var oForm = oTa.form ;
    var sMsg = oTa.value ;
    var onlynum = "" ;
    var imsi=0;
    onlynum = RemoveDash2(sMsg);  //하이픈 입력시 자동으로 삭제함
    onlynum =  checkDigit(onlynum);  // 숫자만 입력받게 함
    var retValue = "";

if(event.keyCode != 12 ) {
    if(onlynum.substring(0,2) == 02) {  // 서울전화번호일 경우  10자리까지만 나타나교 그 이상의 자리수는 자동삭제
        if (GetMsgLen(onlynum) <= 1) oTa.value = onlynum ;
        if (GetMsgLen(onlynum) == 2) oTa.value = onlynum + "-";
        if (GetMsgLen(onlynum) == 4) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,3) ;
        if (GetMsgLen(onlynum) == 4) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,4) ;
        if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,5) ;
        if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,6) ;
        if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,5) + "-" + onlynum.substring(5,7) ; ;
        if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,6) + "-" + onlynum.substring(6,8) ;
        if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,5) + "-" + onlynum.substring(5,9) ;
        if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,6) + "-" + onlynum.substring(6,10) ;
        if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,6) + "-" + onlynum.substring(6,10) ;
        if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,2) + "-" + onlynum.substring(2,6) + "-" + onlynum.substring(6,10) ;
    }
    if(onlynum.substring(0,2) == 05 ) {  // 05로 시작되는 번호 체크
        if(onlynum.substring(2,3) == 0 ) {  // 050으로 시작되는지 따지기 위한 조건문
            if (GetMsgLen(onlynum) <= 3) oTa.value = onlynum ;
            if (GetMsgLen(onlynum) == 4) oTa.value = onlynum + "-";
            if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,5) ;
            if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,6) ;
            if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,7) ;
            if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
            if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,7) + "-" + onlynum.substring(7,9) ; ;
            if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) + "-" + onlynum.substring(8,10) ;
            if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,7) + "-" + onlynum.substring(7,11) ;
            if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) + "-" + onlynum.substring(8,12) ;
            if (GetMsgLen(onlynum) == 13) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) + "-" + onlynum.substring(8,12) ;
        } else {
            if (GetMsgLen(onlynum) <= 2) oTa.value = onlynum ;
            if (GetMsgLen(onlynum) == 3) oTa.value = onlynum + "-";
            if (GetMsgLen(onlynum) == 4) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,4) ;
            if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,5) ;
            if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) ;
            if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) ;
            if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) + "-" + onlynum.substring(6,8) ; ;
            if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,9) ;
            if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) + "-" + onlynum.substring(6,10) ;
            if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
            if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
        }
    }

        if(onlynum.substring(0,2) == 03 || onlynum.substring(0,2) == 04  || onlynum.substring(0,2) == 06  || onlynum.substring(0,2) == 07  || onlynum.substring(0,2) == 08 ) {  // 서울전화번호가 아닌 번호일 경우(070,080포함 // 050번호가 문제군요)
            if (GetMsgLen(onlynum) <= 2) oTa.value = onlynum ;
            if (GetMsgLen(onlynum) == 3) oTa.value = onlynum + "-";
            if (GetMsgLen(onlynum) == 4) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,4) ;
            if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,5) ;
            if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) ;
            if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) ;
            if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) + "-" + onlynum.substring(6,8) ; ;
            if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,9) ;
            if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) + "-" + onlynum.substring(6,10) ;
            if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
            if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
        }
        if(onlynum.substring(0,2) == 01) {  //휴대폰일 경우
            if (GetMsgLen(onlynum) <= 2) oTa.value = onlynum ;
            if (GetMsgLen(onlynum) == 3) oTa.value = onlynum + "-";
            if (GetMsgLen(onlynum) == 4) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,4) ;
            if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,5) ;
            if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) ;
            if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) ;
            if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,8) ;
            if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,9) ;
            if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,6) + "-" + onlynum.substring(6,10) ;
            if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
            if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,3) + "-" + onlynum.substring(3,7) + "-" + onlynum.substring(7,11) ;
        }

        if(onlynum.substring(0,1) == 1) {  // 1588, 1688등의 번호일 경우
            if (GetMsgLen(onlynum) <= 3) oTa.value = onlynum ;
            if (GetMsgLen(onlynum) == 4) oTa.value = onlynum + "-";
            if (GetMsgLen(onlynum) == 5) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,5) ;
            if (GetMsgLen(onlynum) == 6) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,6) ;
            if (GetMsgLen(onlynum) == 7) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,7) ;
            if (GetMsgLen(onlynum) == 8) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
            if (GetMsgLen(onlynum) == 9) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
            if (GetMsgLen(onlynum) == 10) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
            if (GetMsgLen(onlynum) == 11) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
            if (GetMsgLen(onlynum) == 12) oTa.value = onlynum.substring(0,4) + "-" + onlynum.substring(4,8) ;
        }
    }
}

function RemoveDash2(sNo) {
    var reNo = ""
    for(var i=0; i<sNo.length; i++) {
        if ( sNo.charAt(i) != "-" ) {
            reNo += sNo.charAt(i)
        }
    }
    return reNo
}

function GetMsgLen(sMsg) { // 0-127 1byte, 128~ 2byte
    var count = 0
    for(var i=0; i<sMsg.length; i++) {
        if ( sMsg.charCodeAt(i) > 127 ) {
            count += 2
        }    else {
            count++
        }
    }
    return count
}

function checkDigit(num) {
    var Digit = "1234567890";
    var string = num;
    var len = string.length
    var retVal = "";

    for (i = 0; i < len; i++)
    {
        if (Digit.indexOf(string.substring(i, i+1)) >= 0)
        {
            retVal = retVal + string.substring(i, i+1);
        }
    }
    return retVal;
}
//*전화번호 입력시 자동하이픈 끝*/

사용법 :<input value="" onkeyup="OnCheckPhone(this);" type="text">

출처:http://www.phpschool.com/gnuboard4/bbs/board.php?bo_table=tipntech&wr_id=67327#c_67327