//ÀԷ°ªÀÌ NULLÀÎÁö üũ
function isNull(input) {
    if (input.value == null || input.value == "") {
        return true;
    }
    return false;
}

//ÀԷ°ª¿¡ ½ºÆäÀ̽º ÀÌ¿ÜÀÇ ÀǹÌÀÖ´Â °ªÀÌ ÀÖ´ÂÁö üũ
function isEmpty(input) {
    if (input.value == null || input.value.replace(/ /gi,"") == "") {
        return true;
    }
    return false;
}

//ÀԷ°ª¿¡ ƯÁ¤ ¹®ÀÚ(chars)°¡ ÀÖ´ÂÁö üũ
/*ƯÁ¤ ¹®ÀÚ¸¦ Çã¿ëÇÏÁö ¾ÊÀ¸·Á ÇÒ ¶§ »ç¿ë
  ex) if (containsChars(form.name,"!,*&^%$#@~;")) {
          alert("À̸§ Çʵ忡´Â Ư¼ö ¹®ÀÚ¸¦ »ç¿ëÇÒ ¼ö ¾ø½À´Ï´Ù.");
      }
*/
function containsChars(input,chars) {
    for (var inx = 0; inx < input.value.length; inx++) {
       if (chars.indexOf(input.value.charAt(inx)) != -1)
           return true;
    }
    return false;
}

//ÀԷ°ªÀÌ Æ¯Á¤ ¹®ÀÚ(chars)¸¸À¸·Î µÇ¾îÀÖ´ÂÁö üũ
/*ƯÁ¤ ¹®ÀÚ¸¸ Çã¿ëÇÏ·Á ÇÒ ¶§ »ç¿ë
  ex) if (!containsCharsOnly(form.blood,"ABO")) {
          alert("Ç÷¾×Çü Çʵ忡´Â A,B,O ¹®ÀÚ¸¸ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.");
      }
*/
function containsCharsOnly(input,chars) {
    for (var inx = 0; inx < input.value.length; inx++) {
       if (chars.indexOf(input.value.charAt(inx)) == -1)
           return false;
    }
    return true;
}

//ÀԷ°ªÀÌ ¾ËÆĺªÀÎÁö üũ
function isAlphabet(input) {
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ªÀÌ ¾ËÆĺª ´ë¹®ÀÚÀÎÁö üũ
function isUpperCase(input) {
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ªÀÌ ¾ËÆĺª ¼Ò¹®ÀÚÀÎÁö üũ
function isLowerCase(input) {
    var chars = "abcdefghijklmnopqrstuvwxyz";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ª¿¡ ¼ýÀÚ¸¸ ÀÖ´ÂÁö üũ
function isNumber(input) {
    var chars = "0123456789";
    return containsCharsOnly(input, chars);
}

function isNumberStr(input, chars) {
    var chars = "0123456789";
    for (var inx = 0; inx < input.length; inx++) {
       if (chars.indexOf(input.charAt(inx)) == -1)
           return false;
    }
    return true;
}

//ÀԷ°ªÀÌ ¾ËÆĺª,¼ýÀÚ·Î µÇ¾îÀÖ´ÂÁö üũ
function isAlphaNum(input) {
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ªÀÌ ¼ýÀÚ,´ë½Ã(-)·Î µÇ¾îÀÖ´ÂÁö üũ
function isNumDash(input) {
    var chars = "-0123456789";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ªÀÌ ¼ýÀÚ,ÄÞ¸¶(,)·Î µÇ¾îÀÖ´ÂÁö üũ
function isNumComma(input) {
    var chars = ",0123456789";
    return containsCharsOnly(input,chars);
}

//ÀԷ°ªÀÌ »ç¿ëÀÚ°¡ Á¤ÀÇÇÑ Æ÷¸Ë Çü½ÄÀÎÁö üũ
//regular expression ÂüÁ¶
function isValidFormat(input, format) {
    if (input.search(format) != -1) {
        return true; //¿Ã¹Ù¸¥ Æ÷¸Ë Çü½Ä
    }
    return false;
}

//ÀԷ°ªÀÌ À̸ÞÀÏ Çü½ÄÀÎÁö üũ
function isValidEmail(input) {
    var format = /^((\w|[\-\.])+)@((\w|[\-\.])+)\.([A-Za-z]+)$/;
    return isValidFormat(input,format);
}

//ÀԷ°ªÀÌ ÀüÈ­¹øÈ£ Çü½Ä(¼ýÀÚ-¼ýÀÚ-¼ýÀÚ)ÀÎÁö üũ
function isValidPhone(input) {
    var format = /^(\d+)-(\d+)-(\d+)$/;
    if (input.search(format) != -1) {
        return true; //¿Ã¹Ù¸¥ Æ÷¸Ë Çü½Ä
    }
	else false;
}

//ÀԷ°ªÀÌ ÁֹιøÈ£ Çü½ÄÀÎÁö üũ
function isValidSNO(input) {
	if (input.length != 13) {
		alert("Áֹεî·ÏÀÌ 13ÀÚ¸®ÀÎÁö È®ÀÎÇØÁֽʽÿä!");
		return false;
	}

	if (!isNumberStr(input)) {
		alert("Áֹεî·Ï¹øÈ£´Â ¼ýÀÚ·Î ÀÔ·ÂÇØÁÖ¼¼¿ä2!");
		return false;
	}

	var a=input.substring(0,1);
	var b=input.substring(1,2);
	var c=input.substring(2,3);
	var d=input.substring(3,4);
	var e=input.substring(4,5);
	var f=input.substring(5,6);
	var g=input.substring(6,7);
	var h=input.substring(7,8);
	var i=input.substring(8,9);
	var j=input.substring(9,10);
	var k=input.substring(10,11);
	var l=input.substring(11,12);
	var m=input.substring(12,13);

	var sum = 2*a + 3*b + 4*c+ 5*d + 6*e+ 7*f+ 8*g + 9*h+ 2*i+3*j+ 4*k+ 5*l;
	var r1 = sum%11;
	var temp = 11* ((sum-r1)/11) + 11 - sum;
	var r2 = temp%10;
	var temp1 = temp- 10*((temp-r2)/10);

	if (m != temp1) {
		alert("¿Ã¹Ù¸¥ Áֹεî·Ï¹øÈ£°¡ ¾Æ´Õ´Ï´Ù");
		return false;
	}

	return true;

}

// »ç¾÷ÀÚµî·Ï¹øÈ£ üũ
function isValidRegNo(vencod) {
	var sum = 0;
	var getlist =new Array(10);
	var chkvalue =new Array("1","3","7","1","3","7","1","3","5");
	for(var i=0; i<10; i++) { getlist[i] = vencod.substring(i, i+1); }
	for(var i=0; i<9; i++) { sum += getlist[i]*chkvalue[i]; }
	sum = sum + parseInt((getlist[8]*5)/10);
	sidliy = sum % 10;
	sidchk = 0;
	if(sidliy != 0) { sidchk = 10 - sidliy; }
	else { sidchk = 0; }
	if(sidchk != getlist[9]) { return false; }
	return true;
}


//±Ý¾×Çü½ÄÀÇ Æ÷¸ËÀ¸·Î º¯Èº
function add_comma(what)
{
    var flag = 1;
    var data = what;
    var len = data.length;
    
    if (data.charAt(0) == '-')
    {
        flag = 0;
        data = data.substring(1);
    }
    if (data.charAt(0) == '0' && data.charAt(1) == '-')
    {
        flag = 0;
        data = data.substring(2);
    }
    
    var number = strip_comma(data);
    number = '' + number;
    if (number.length > 3)
    {
        var mod = number.length % 3;
        var output = (mod > 0 ? (number.substring(0,mod)) : '');
        for (i=0; i<Math.floor(number.length/3); i++)
        {
            if ((mod == 0) && (i == 0))
                output += number.substring(mod+3*i, mod+3*i+3);
            else
                output += ',' + number.substring(mod+3*i, mod+3*i+3);
        }
        if (flag == 0)
        {
            return ('-' + output);
        }
        else
        {
            return (output);
        }
    }
    else
    {
        if (flag == 0)
        {
            return ('-' + number);
        }
        else
        {
            return (number);
        }
    }
}

function strip_comma(data)
{
    var flag = 1;
    var valid = "1234567890";
    var output = '';
    if (data.charAt(0) == '-')
    {
        flag = 0;
        data = data.substring(1);
    }
    
    for (var i=0; i<data.length; i++)
    {
        if (valid.indexOf(data.charAt(i)) != -1)
            output += data.charAt(i)
    }
    
    if (flag == 1)
        return output;
    else if (flag == 0)
        return ('-' + output);
}

//ÀԷ°ªÀÇ ¹ÙÀÌÆ® ±æÀ̸¦ ¸®ÅÏ
function getByteLength(input) {
    var byteLength = 0;
    for (var inx = 0; inx < input.value.length; inx++) {
        var oneChar = escape(input.value.charAt(inx));
        if ( oneChar.length == 1 ) {
            byteLength ++;
        } else if (oneChar.indexOf("%u") != -1) {
            byteLength += 2;
        } else if (oneChar.indexOf("%") != -1) {
            byteLength += oneChar.length/3;
        }
    }
    return byteLength;
}

//¼±ÅÃµÈ ¶óµð¿À¹öÆ°ÀÌ ÀÖ´ÂÁö üũ
function hasCheckedRadio(input) {
    if (input.length > 1) {
        for (var inx = 0; inx < input.length; inx++) {
            if (input[inx].checked) return true;
        }
    } else {
        if (input.checked) return true;
    }
    return false;
}

//¼±ÅÃµÈ Ã¼Å©¹Ú½º°¡ ÀÖ´ÂÁö üũ
function hasCheckedBox(input) {
    return hasCheckedRadio(input);
}

// ¼±ÅÃµÈ Ã¼Å©¹Ú½º °³¼ö ¸®ÅÏ
function chkCount(obj) {
	var cnt 	= 0;

	if(typeof(obj) == 'undefined') return cnt;
	if(typeof(obj.length) == 'undefined') {
		if(obj.checked) cnt++;
	}
	else {
		for(i=0; i<obj.length; i++) {
			if(obj[i].checked) cnt++;
		}
	}
	
	return cnt;
}

function chkAllBox(chk, input) {
	if(chk.checked) val = true;
	else val = false;
	
    if (input.length > 1) {
        for (var inx = 0; inx < input.length; inx++) {
            input[inx].checked = val;
        }
    } else {
        input.checked = val;
    }
}

function setOption(element,val){
	optLen = element.options.length;
	for(i=0;i<optLen;i++){
		if(element.options[i].value == val){
			element.options[i].selected = true;
		}
	}
}

function setRadio(element, val){
	if(typeof(element.length) == 'undefined'){
		if(element.value == val) {
			element.checked=true;
		}
	}else{
		for(i=0;i<element.length;i++){
			if(element[i].value == val){
				element[i].checked=true;
			}
		}
	}
}

//ÄíÅ° ÀúÀå
function SetCookie(cname,cvalue,cpath,cexpire){
	var cdomain;

    if(typeof(document.domain) == 'undefined')
      cdomain = getDomain();
    else if(document.domain == '')
      cdomain = getDomain();
    else
      cdomain = document.domain;

    var path = (typeof(cpath) == 'undefined') ? '/' : cpath;
    var today = (typeof(cexpire) == 'undefined') ? new Date() : cexpire;

    document.cookie = cname + "=" + cvalue
                    + "; expires=" + today.toGMTString()
                    + ((path == null) ? "" : ("; path=" + path))
                    + ((cdomain == null) ? "" : ("; domain=" + cdomain));
}

//ÄíÅ° ÃßÃâ
function GetCookie(cookieName) {
    var nameLen = cookieName.length;
    var cookieStr = document.cookie;
    var cLen = document.cookie.length;
    var i=0;
    if( (p = cookieStr.indexOf(cookieName)) == -1)
      return null;

    cookieStr = cookieStr.substring(p + nameLen + 1);

    if(cookieStr == '')
      return '';

    if( (p = cookieStr.indexOf(';')) == -1)
      return cookieStr;

    return cookieStr.substring(0,p);
}

//µµ¸ÞÀÎ ÃßÃâ
function GetDomain(){
    Loc = document.location.href;
    Loc = Loc.substring(Loc.indexOf('.') + 1);
    return Loc.substring(0,Loc.indexOf('/'));
}

// °´Ã¼ °ªÀÌ °ø¹éÀÎÁö üũ, ¸¸¾à °ø¹éÀÌ¸é °æ°í
function chkInputText(obj, str) {
	if(typeof(obj) != "object") {
		alert("Á¤ÀǵÇÁö ¾ÊÀº ¿ÀºêÁ§Æ® ÀÔ´Ï´Ù.\n("+str+")");
		return true;
	}
	
	if(isEmpty(obj)) {
		alert(str);
		obj.focus();
		return true;
	}
}

// °´Ã¼ °ªÀÌ ¼ýÀÚÀÎÁö üũ, ¾Æ´Ï¸é °æ°í
function chkInputNumber(obj, str) {
	if(typeof(obj) != "object") {
		alert("Á¤ÀǵÇÁö ¾ÊÀº ¿ÀºêÁ§Æ® ÀÔ´Ï´Ù.\n("+str+")");
		return true;
	}

	if(!isNumber(obj)) {
		alert(str);
		obj.focus();
		return true;
	}
}

// ÆäÀÌÁö À̵¿
function MovePage(link, target) {
	if(target == null || target == "" || target == "self") {
		self.location = link;
	}
	else if(target == "top") {
		top.location = link;
	}
}

// À¯È¿ÇÑ ÆÄÀÏ È®Àå¸íÀÎÁö üũ
function isValidFiletype(basetype, filename) {
	var pos;
	var result = false;

	if ((filename == null) || (filename == "")) {
		return "";
	}

	var pos = filename.lastIndexOf('.');
	if (pos == -1) return result;
	else {
		ext = filename.substr(pos+1);
		if(basetype.indexOf(ext.toLowerCase()) != -1) result = true;
	}
	
	return result;
}

// »õâ È­¸é Áß¾Ó¿¡ ¿­±â
function OpenWindow(uri, name, x, y, z) {
	//z = "toolbar=0, resizable=0, scrollbars=auto";

    opt = "height=" + y + ",innerHeight=" + y;
    opt += ",width=" + x + ",innerWidth=" + x;

    if (window.screen) {
        var ah = screen.availHeight - 30;
        var aw = screen.availWidth - 10;
        var xc = (aw - x) / 2;
        var yc = (ah - y) / 2;
        
       	opt += ",left=" + xc + ",screenX=" + xc;
       	opt += ",top=" + yc + ",screenY=" + yc;
       	if(z != "") opt += ","+z;
    }

	window.open(uri, name, opt);
}

function setStyle(obj, new_style) {
    obj.className = new_style;
}

//°¡·Î »çÀÌÁî ºñÀ²¿¡ ¸ÂÃç À̹ÌÁö »çÀÌÁî Á¶Á¤
function resizeImgWidth(imgObj, isize) {
	var img = new Image();
	img.src = imgObj.src
	
    var oldWidth = img.width;
    var oldHeight = img.height;
    
    if (oldWidth > isize) {
        var newWidth = isize;
        var newHeight = Math.round(oldHeight * newWidth / oldWidth);
        imgObj.wdith = newWidth;
        imgObj.height = newHeight;
    }
}

//¼¼·Î »çÀÌÁî ºñÀ²¿¡ ¸ÂÃç À̹ÌÁö »çÀÌÁî Á¶Á¤
function resizeImgHeight(imgObj, isize) {
	var img = new Image();
	img.src = imgObj.src

    var oldWidth = img.width;
    var oldHeight = img.height;
    if (oldHeight > isize) {
        var newHeight = isize;
        var newWidth = Math.round(oldWidth * newHeight / oldHeight);
        imgObj.wdith = newWidth;
        imgObj.height = newHeight;
    }
}