//키보드 숫자입력만 가능하게
function js_onlynumber()	{
	if((event.keyCode<48)||(event.keyCode>57))
		event.returnValue=false;
}

//공백제거
function trim(str) {
  var str = str.replace(/\s+/g,'');
  if (!str || str == "" || str == " ") return false;
  return true;
}

function trim2(value) {
	var str = value.replace(/\s+/g,'');
	if(value.length != str.length){
		return 0;
	}else{
		return 1;
	}
}

//숫자 유효성
function isStringNumber(str) {

	var ref="0123456789";
	var sLength=str.length;
	var chr, idx, idx2;

	for(var i=0; i<sLength; i++) {
		chr=str.charAt(i);
		idx=ref.indexOf(chr);
		if(idx==-1) {
			return 0;
		}
	}
	
	return 1;
}

//영문 유효성
function isStringAlphabet(str) {

	var ref="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var sLength=str.length;
	var chr, idx, idx2;

	for(var i=0; i<sLength; i++) {
		chr=str.charAt(i);
		idx=ref.indexOf(chr);
		if(idx==-1) {
			return 0;
		}
	}
	
	return 1;
}

//숫자+영문 유효성
function isStringNumberOrAlphabet(str) {

	var ref="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var sLength=str.length;
	var chr, idx, idx2;

	for(var i=0; i<sLength; i++) {
		chr=str.charAt(i);
		idx=ref.indexOf(chr);
		if(idx==-1) {
			return 0;
		}
	}
	
	return 1;
}

// 이메일 유효성 체크
function isValidEmail(value) {
	var pattern = /^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;
    return (pattern.test(value));
}

//주민번호 유효성
function checkReliabilityOfJuminNumber(str1, str2) {

	var aObjMultiliers1= new Array(2, 3, 4, 5, 6, 7);
	var aObjMultiliers2= new Array(8, 9, 2, 3, 4, 5);
	var sum=0, sum1=0, sum2=0;
	var sLength1, sLength2;

	sLength1=str1.length;
	sLength2=str2.length;

	if(sLength1<6 || sLength2<7) return 0;

	for(i=0 ; i<6; i++) {
		sum1+=parseInt(str1.charAt(i), 10)*aObjMultiliers1[i];
		sum2+=parseInt(str2.charAt(i), 10)*aObjMultiliers2[i];
	}
	sum=sum1+sum2;
	var checker=(11-(sum%11))%10;

	if(checker==parseInt(str2.charAt(6), 10)) return 1;
	else return 0;
}

//커서 옮기기
function keynext(obj,obj2,num){
   var str = obj.value;
   if(event.keyCode  < 48 || 57 > event.keyCode){ 
	  return false; 
   } 
   if(str.length == num){
      obj2.focus();
   }
}