<!--
function beAllowStr(str, allowStr) {
    var i;
    var ch;
    for (i=0;i<str.length;i++) {
        ch = str.charAt(i);
        if (allowStr.indexOf(ch) < 0) {
            return false;
        }
    }
    return true;
}

function check_form() {
  if (form.k_name.value=="") {
     alert("한글 이름을 입력하세요.");
     form.k_name.focus();
     return false;
  }
  if (form.man_num1.value=="") {
     alert("주민번호를 입력하세요.");
     form.man_num1.focus();
     return false;
  }
  if (form.man_num2.value=="") {
     alert("주민번호를 입력하세요.");
     form.man_num2.focus();
     return false;
  }
  if (form.man_num1.value !="" && form.man_num2.value !="") {
     if(!check_man_num()) {return false;}
  }
  if (form.zipcode1.value=="") {
     alert("우편번호를 입력하세요.");
     return false;
  }
  if (form.address.value=="") {
     alert("주소를 입력하세요.");
     form.address.focus();
     return false;
  }
  if (form.tel1.value=="") {
     alert("전화번호를 입력하세요.");
     form.tel1.focus();
     return false;
  }
  if (beAllowStr(form.tel1.value, "1234567890") == false) {
    alert("전화번호에는 숫자만 입력할수 있습니다.");
    form.tel1.value="";
    form.tel1.focus();
    return false;
  }
  if (form.tel2.value=="") {
     alert("전화번호를 입력하세요.");
     form.tel2.focus();
     return false;
  }
  if (beAllowStr(form.tel2.value, "1234567890") == false) {
    alert("전화번호에는 숫자만 입력할수 있습니다.");
    form.tel2.value="";
    form.tel2.focus();
    return false;
  }
  if (form.tel3.value=="") {
     alert("전화번호를 입력하세요.");
     form.tel3.focus();
     return false;
  }
  if (beAllowStr(form.tel3.value, "1234567890") == false) {
    alert("전화번호에는 숫자만 입력할수 있습니다.");
    form.tel3.value="";
    form.tel3.focus();
    return false;
  }
  if (form.email.value=="") {
     alert("이메일을 입력하세요.");
     form.email.focus();
     return false;
  }
  if (form.email.value !="") {
     if(!check_email()) {return false;}
  }
  if (form.image.value=="") {
     alert("사진을 입력하세요.");
     form.image.focus();
     return false;
  }
  if (form.school_name.value=="" && form.school_level.value != "6") {
     alert("학교명을 입력하세요.");
     form.school_name.focus();
     return false;
  }
  if (form.school_major1.value=="" && form.school_major2.value=="" && form.school_level.value != "6") {
     alert("학년/반 또는 학과를 입력하세요.");
     return false;
  }
  if (form.first_title.value=="") {
     alert("예선곡목을 입력하세요.");
     form.first_title.focus();
     return false;
  }
  if (form.second_title.value=="") {
     alert("본선곡목을 입력하세요.");
     form.second_title.focus();
     return false;
  }
  return true;
}

function check_email() {
  if (beAllowStr(form.email.value, "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@.-_") == false) {
    alert("e-mail에는 영문과 숫자 - _ . @만 사용할 수 있습니다.");
    form.email.focus();
    return false;
  }
  var atCnt = 0;
  var dotCnt = 0;
  for (i = 0; i < form.email.value.length ; i++) { 
    ch = form.email.value.charAt(i);
    if (ch == "@") 
      atCnt++;
    if (ch == ".") {
      dotCnt++;
    }
  }
  if (atCnt != 1 || dotCnt < 1) {
    alert ("유효하지 않은 e-mail입니다.");
    form.email.focus();
    return false;
  }
  var atIndex = 0;
  atIndex = form.email.value.indexOf("@");
  if (atIndex <= 0) {
    alert ("유효하지 않은 e-mail입니다.");
    form.email.focus();
    return false;
  }
  return true;
}

function MakeArray(n){  
   this.length = n;  
   for( var x = 1 ; x <= n; x++) {  
      this[x] = 0;  
   }  
   return this;  
}  

function check_man_num(){

   var H = form.man_num1.value;
   var L = form.man_num2.value;

   var hLength = H.length;  
   var lLength = L.length;  
   var hValue = H.toString();  
   var lValue = L.toString();  
     
   var hVal = new MakeArray(6);  
   var lVal = new MakeArray(7);  
  
   if (hLength == 6) {  
      if (lLength == 7) {  
         for (var i = 0 ; i < hLength ; i++){  
            hVal[i] = hValue.substring(i,i+1);  
         }
     
         for (var i = 0 ; i < lLength ; i++){  
            lVal[i] = lValue.substring(i,i+1);
         }
         hVal[0] = hVal[0] *2;  
         hVal[1] = hVal[1] *3;  
         hVal[2] = hVal[2] *4;  
         hVal[3] = hVal[3] *5;  
         hVal[4] = hVal[4] *6;  
         hVal[5] = hVal[5] *7;  

         lVal[0] = lVal[0] *8;  
         lVal[1] = lVal[1] *9;  
         lVal[2] = lVal[2] *2;  
         lVal[3] = lVal[3] *3;  
         lVal[4] = lVal[4] *4;  
         lVal[5] = lVal[5] *5;  
             
             
         var hTot = 0;  
         for (var i = 0 ; i < hLength ; i++){  
            hTot = hTot + hVal[i];  
         }  
             
         var lTot = 0;  
         for (var i = 0 ; i < lLength-1 ; i++){  
            lTot = lTot + lVal[i];  
         }  
         var tTot = 0;  
         tTot = lTot + hTot;  
         var Rest = 0;  
         Rest = tTot%11;  
         var last = 0;  
         last = 11 - Rest;  
    
         if (last >= 10) {
            last = last - 10;
         }
         if (last != lVal[6]) {  
            alert ("주민번호를 올바르게 입력하시기 바랍니다.");
            form.man_num1.focus();  
            return false;  
         }  
      } 
      else {  
         alert ("주민번호를 올바르게 입력하시기 바랍니다.");
         form.man_num2.focus();  
         return false;  
      }
   }
   else {  
      alert ("주민번호를 올바르게 입력하시기 바랍니다.");
      form.man_num1.focus();  
      return false;  
   }  
   return true;
}

function school_sel() {
   if(form.school_level.value == "1" || form.school_level.value == "2" || form.school_level.value == "3" || form.school_level.value == "4") {
      document.all.school0.style.display = 'block'
      document.all.school1.style.display = 'block'
      document.all.school2.style.display = 'none'
   }
   if(form.school_level.value == "5") {
      document.all.school0.style.display = 'block'
      document.all.school1.style.display = 'none'
      document.all.school2.style.display = 'block'
   }
   if(form.school_level.value == "6") {
      document.all.school0.style.display = 'none'
      document.all.school1.style.display = 'none'
      document.all.school2.style.display = 'none'
   }
}
//-->