/// 에러메시지 포멧 정의 ///
var NO_BLANK	= "{name}: Dies ist ein Pflichtfeld.";
var NOT_VALID	= "{name}: ";
var TOO_LONG	= "{name}의 길이가 초과되었습니다 (최대 {maxbyte}바이트)";

/// 스트링 객체에 메소드 추가 ///
String.prototype.trim = function(str) 
{	
	str = this != window ? this : str; 
	return str.replace(/^\s+/g,'').replace(/\s+$/g,''); 
}

String.prototype.hasFinalConsonant = function(str) 
{
	str = this != window ? this : str; 
	var strTemp = str.substr(str.length-1);
	return ((strTemp.charCodeAt(0)-16)%28!=0);
}

String.prototype.bytes = function(str) 
{
	str = this != window ? this : str;

	for(j=0; j<str.length; j++) 
	{
		var chr = str.charAt(j);
		len += (chr.charCodeAt() > 128) ? 2 : 1
	}

	return len;
}

function validate(form) 
{
	for (i = 0; i < form.elements.length; i++ ) 
	{
		var el = form.elements[i];
		if (el.tagName == "FIELDSET") continue;
		el.value = el.value.trim();

		var minbyte = el.getAttribute("MINBYTE");
		var maxbyte = el.getAttribute("MAXBYTE");
		var option = el.getAttribute("OPTION");
		var match = el.getAttribute("MATCH");
		var glue = el.getAttribute('GLUE');

		if (el.getAttribute("REQUIRED") != null) 
		{
			if (el.value == null || el.value == "") 
			{
				return doError(el,NO_BLANK);
			}
		}

		if (minbyte != null) 
		{
			if (el.value.bytes() < parseInt(minbyte)) 
			{
				return doError(el,"{name+은는} 최소 "+minbyte+"바이트 이상 입력해야 합니다.");
			}
		}

		if (maxbyte != null && el.value != "") 
		{
			var len = 0;
			if (el.value.bytes() > parseInt(maxbyte)) 
			{
				return doError(el,"{name}의 길이가 초과되었습니다 (최대 "+maxbyte+"바이트)");
			}
		}

		if (match && (el.value != form.elements[match].value)) return doError(el,"{name+이가} 일치하지 않습니다");

		if (option != null && el.value != "") 
		{
			if (el.getAttribute('SPAN') != null) 
			{
				var _value = new Array();

				for (span=0; span<el.getAttribute('SPAN');span++ ) 
				{
					_value[span] = form.elements[i+span].value;
				}

				var value = _value.join(glue == null ? '' : glue);
				if (!funcs[option](el,value)) return false;
			} 
			else 
			{
				if (!funcs[option](el)) return false;
			}
		}
	}

	return true;
}

function josa(str,tail) 
{
	return (str.hasFinalConsonant()) ? tail.substring(0,1) : tail.substring(1,2);
}

function doError(el,type,action) 
{
	var pattern = /{([a-zA-Z0-9_]+)\+?([가-힝]{2})?}/;
	var name = (hname = el.getAttribute("HNAME")) ? hname : el.getAttribute("NAME");
	pattern.exec(type);
	var tail = (RegExp.$2) ? josa(eval(RegExp.$1),RegExp.$2) : "";
	alert(type.replace(pattern,eval(RegExp.$1) + tail));

	if (action == "sel") 
	{
		el.select();
	} 
	else if (action == "del")	
	{
		el.value = "";
	}

	el.focus();

	return false;
}	

/// 특수 패턴 검사 함수 매핑 ///
var funcs = new Array();
funcs['email'] = isValidEmail;
funcs['phone'] = isValidPhone;
funcs['userid'] = isValidUserid;
funcs['hangul'] = hasHangul;
funcs['nohangul'] = noHangul;
funcs['number'] = isNumeric;
funcs['engonly'] = alphaOnly;
funcs['jumin'] = isValidJumin;
funcs['bizno'] = isValidBizNo;
funcs['domain'] = isValidDomain;

/// 패턴 검사 함수들 ///
function isValidEmail(el,value) 
{
	var value = value ? value : el.value;
	var pattern = /^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;
	return (pattern.test(value)) ? true : doError(el,NOT_VALID);
}

function isValidUserid(el) 
{
	var pattern = /^[a-zA-Z]{1}[a-zA-Z0-9_]{4,11}$/;
	return (pattern.test(el.value)) ? true : doError(el,"{name+은는} 5자이상 12자 미만이어야 하고,\n 영문,숫자, _ 문자만 사용할 수 있습니다");
}

function hasHangul(el) 
{
	var pattern = /[가-힝]/;
	return (pattern.test(el.value)) ? true : doError(el,"{name+은는} 반드시 한글을 포함해야 합니다");
}

function noHangul(el) 
{
	var pattern = /[가-힝]/;
	return (pattern.test(el.value)) ? doError(el,"{name+은는} 한글을 포함할 수 없습니다") : true;
}

function alphaOnly(el) 
{
	var pattern = /^[a-zA-Z]+$/;
	return (pattern.test(el.value)) ? true : doError(el,NOT_VALID);
}

function isNumeric(el) 
{
	var pattern = /^[0-9]+$/;
	return (pattern.test(el.value)) ? true : doError(el,"{name+은는} 반드시 숫자로만 입력해야 합니다");
}

function isValidJumin(el,value) 
{
    var pattern = /^([0-9]{6})-?([0-9]{7})$/; 
	var num = value ? value : el.value;
    if (!pattern.test(num)) return doError(el,NOT_VALID); 
    num = RegExp.$1 + RegExp.$2;

	var sum = 0;
	var last = num.charCodeAt(12) - 0x30;
	var bases = "234567892345";
	for (var i=0; i<12; i++) 
	{
		if (isNaN(num.substring(i,i+1))) return doError(el,NOT_VALID);
		sum += (num.charCodeAt(i) - 0x30) * (bases.charCodeAt(i) - 0x30);
	}
	var mod = sum % 11;
	return ((11 - mod) % 10 == last) ? true : doError(el,NOT_VALID);
}

function isValidBizNo(el, value) 
{ 
    var pattern = /([0-9]{3})-?([0-9]{2})-?([0-9]{5})/; 
	var num = value ? value : el.value;

    if (!pattern.test(num)) return doError(el,NOT_VALID); 
    num = RegExp.$1 + RegExp.$2 + RegExp.$3;

    var cVal = 0; 
    for (var i=0; i<8; i++) 
	{ 
        var cKeyNum = parseInt(((_tmp = i % 3) == 0) ? 1 : ( _tmp  == 1 ) ? 3 : 7); 
        cVal += (parseFloat(num.substring(i,i+1)) * cKeyNum) % 10; 
    } 

    var li_temp = parseFloat(num.substring(i,i+1)) * 5 + '0'; 
    cVal += parseFloat(li_temp.substring(0,1)) + parseFloat(li_temp.substring(1,2)); 
    return (parseInt(num.substring(9,10)) == 10-(cVal % 10)%10) ? true : doError(el,NOT_VALID); 
}

function isValidPhone(el,value) 
{
	var pattern = /^([0]{1}[0-9]{1,2})-?([1-9]{1}[0-9]{2,3})-?([0-9]{4})$/;
	var num = value ? value : el.value;

	if (pattern.exec(num)) 
	{
		if(RegExp.$1 == "011" || RegExp.$1 == "016" || RegExp.$1 == "017" || RegExp.$1 == "018" || RegExp.$1 == "019") 
		{
			if (!el.getAttribute('SPAN')) 
			{
				el.value = RegExp.$1 + "-" + RegExp.$2 + "-" + RegExp.$3;
			}
		}
	
		return true;
	} 
	else 
	{
		return doError(el,NOT_VALID);
	}
}

function isValidDomain(el) 
{
	var pattern = /^.+(\.[a-zA-Z]{2,3})$/;
	return (pattern.test(el.value)) ? true : doError(el,NOT_VALID);
}

function isValidDomain(el,value) 
{
	var value = value ? value : el.value;
	var pattern = new RegExp("^(http://)?(www\.)?([가-힝a-zA-Z0-9-]+\.[a-zA-Z]{2,3}$)","i");
	if (pattern.test(value)) 
	{
		el.value = RegExp.$3;
		return true;
	} 
	else 
	{
		return doError(el,NOT_VALID);
	}
}