//¿ì¸® ¾ÆÀÌ ÇнÀ·® Á¶È¸Çϱâ SHOW ó¸®
function show_stview()
{
	//var check_jumin = replace_value(document.all.jumin.value, "-", ""); 
	var check_jumin = document.all.jumin1.value+document.all.jumin2.value; 
	document.all.jumin1.value='';
	document.all.jumin2.value='';
	//Áֹεî·Ï ¹øÈ£ ±æÀÌ È®ÀÎ
	if(check_jumin.length == '13')
	{
		//Áֹεî·Ï ¹øÈ£°¡ Á¤»ó À¯¹« È®ÀÎ
		if(!juminNoCheck(check_jumin))
		{
			alert("Áֹεî·Ï¹øÈ£°¡ Ʋ¸³´Ï´Ù.È®ÀÎÇÏ½Ã°í ´Ù½Ã ÀÔ·ÂÇØ Áֽʽÿä.");
		}
		else
		{
			window.study.location.href = "/main_study.php?jumin="+check_jumin;
		}
	}
	else
	{
		alert("Áֹεî·Ï¹øÈ£°¡ Ʋ¸³´Ï´Ù.È®ÀÎÇÏ½Ã°í ´Ù½Ã ÀÔ·ÂÇØ Áֽʽÿä.");
	}

//	document.all.jumin.value = '';
}

//¿ì¸® ¾ÆÀÌ ÇнÀ·® Á¶È¸Çϱâ HIDE ó¸®
function open_stview(user_nm)
{
	var layer_view = document.getElementById('stview');
	layer_view.style.display='block';

	document.getElementById('study_nm').innerHTML = user_nm+' ÇлýÀÇ ÇнÀ·® Á¶È¸ °á°ú';
}

//¿ì¸® ¾ÆÀÌ ÇнÀ·® Á¶È¸Çϱâ HIDE ó¸®
function close_stview()
{
	var layer_view = document.getElementById('stview');
	layer_view.style.display='none';
}


//±ÛÀÚ Ä¡È¯ ÇÔ¼ö
function replace_value(targetStr, searchStr, replaceStr) 
{
	var i=0,j=0;
	if (targetStr == null || searchStr == null || replaceStr == null) return "";

	var tmpStr = "";
	var tlen = targetStr.length;
	var slen = searchStr.length;
	var i=0;
	var j=0;

	while (i < tlen - slen+1) {
		j = i + slen;
		
		if (targetStr.substring(i,j) == searchStr) {
			tmpStr += replaceStr;
			i += slen;
		} else {
			tmpStr += targetStr.substring(i, i + 1);
			i++;
		}
	}

	tmpStr +=  targetStr.substring(i);

	return tmpStr;
}  


//ÁֹιøÈ£ üũ
function juminNoCheck(Str)
{
		var cont = new makearray(13);
		var num = new makearray(12);
		var result = 0;
			
		temp = Str;
		
		for(i=0; i<temp.length; i++) cont[i] = temp.substring(i, i+1);
				
		num[0] = 2;
		num[1] = 3;
		num[2] = 4;
		num[3] = 5;
		num[4] = 6;
		num[5] = 7;
		num[6] = 8;
		num[7] = 9;
		num[8] = 2;
		num[9] = 3;
		num[10] = 4;
		num[11] = 5;
			
		for(i=0; i<12; i++)
			result = result + cont[i] * num[i];
			result = (11 - (result % 11)) % 10;

			if(result != cont[12]){
				return (false);
			}
		return (true);
}

function makearray(n)
{
		this.length = n;
		for(i=0; i<n; i++)
			this[i] = 0;
		return this;
}