function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function trim(str)
{
	var i, result;
	
	i = 0;
	
	while (str.charAt(i) == " ") {
		i = i + 1;
	}
	
	result = str.substring(i, str.length);
	
	i = result.length - 1;
	
	while (result.charAt(i) == " ") {
		i = i - 1;
	}

	result = result.substring(0, i + 1)
		
	return (result);
}

function byteSize(str, limit) {
	str = trim(str);
	
	var length = 0;
	
	if (str.length == 0) { return 0; }
	else {
		for (var i = 0; i < str.length; i++) {
			if (str.charAt(i) < "¤¡") {	length = length + 1; } else { length = length + 2; }
		}

		if (length > limit)	{ return 1; } else { return; }
	}
}

function byteSize2(str, limit) {
	str = trim(str);
	
	var length = 0;
	
	if (str.length == 0) { return 2; }
	else {
		for (var i = 0; i < str.length; i++) {
			if (str.charAt(i) < "¤¡") {	length = length + 1; } else { length = length + 2; }
		}

		if (length > limit)	{ return 1; } else { return 0; }
	}
}

function CheckNumber(str, mode)
{
	var e1 = str;
	
	if (mode == 0)
	{	var num = "0123456789"; }
	else
	{	var num = "0123456789-() "; }
	
	for (var i = 0; i < e1.length; i++) {
		if (-1 == num.indexOf(e1.charAt(i))) {
		   return 0;
		}
	}
	
	return 1;
}

function onlyNum()
{
	if ((event.keyCode < 48) || (event.keyCode > 57)) event.returnValue = false;
	
	return true;
}

function noSpace() {
	if(event.keyCode == 32) {
		event.returnValue = false;
	}
}
	
function addDot() {
	if(!this.value) {
		return;
	}
	
	if(trim(this.value) == "" || this.value.length == 0) {
		return;
	}
	
	if(this.value.length != 8) {
		alert("³¯Â¥ ÀÔ·ÂÀÌ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.");
		this.select();
		this.focus();
		return;
	}
	
	var inputyear = this.value.substr(0, 4);
	var inputmonth = this.value.substr(4, 2);
	var inputday = this.value.substr(6, 2);
		
	var newDate = new Date(parseInt(inputyear, 10), parseInt(inputmonth, 10) - 1, parseInt(inputday, 10));
				
	if(((newDate.getMonth()) != (parseInt(inputmonth, 10) - 1)) || (newDate.getFullYear() != parseInt(inputyear, 10))) {
		alert("³¯Â¥ ÀÔ·ÂÀÌ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.");
		this.select();
		this.focus();
		return;
	}
	
	this.value = inputyear + "." + inputmonth + "." + inputday;	
}

function removeDot() {
	if(!this.value) {
		return;
	}
	
	this.value = this.value.replace(/\./g, "");
	this.select();
}

function juminCheck(jumin1, jumin2) {
    check = false;
    total = 0;
    temp = new Array(13);
	
	if(jumin1.length < 6 || jumin2.length < 7) {
		return check;
	}
	
    for(i=0; i<6; i++) {
    	temp[i] = parseInt(jumin1.charAt(i));
    }
    
    for(i=6; i<13; i++) {
    	temp[i] = parseInt(jumin2.charAt(i-6));
    }
    
    for(i=0; i<12; i++){
        k = i + 2;
        
        if(k >= 10) {
        	k = k % 10 + 2;
        }
        
        total = total + temp[i] * k;
    }
    
    total = total % 11;
    total = 11 - total;
    
    if(total > 9) {
    	total = total % 10;
    }
           
    if(total == temp[12] && (temp[6]>=1 || temp[6]<=4)) {
    	check = true;
    }
    
    return check;
}

function dateCheck(y, m, d) {
	var newDate = new Date(parseInt(y, 10), parseInt(m, 10) - 1, parseInt(d, 10));
				
	if(((newDate.getMonth()) != (parseInt(m, 10) - 1)) || (newDate.getFullYear() != parseInt(y, 10))) {
		return false;
	}
	
	return true;
}