/*********************************************
* 파일명: lib.validate.js
* 기능: 유연한 자동 폼 검사기
* 만든이: 거친마루 <comfuture@studyfriend.net>
* 날짜: 2002-10-01
**********************************************/

/// 에러메시지 포멧 정의 ///
var NO_BLANK = "{name+은는} 필수항목입니다";
var NOT_VALID = "{name+이가} 올바르지 않습니다";
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);
}

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

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

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

		if (el.getAttribute("MAXBYTE") != null && el.value != "") 
		{
			var len = 0;
			
			for(j=0; j<el.value.length; j++) 
			{
				var str = el.value.charAt(j);
				len += (str.charCodeAt() > 128) ? 2 : 1
			}
			
			if (len > parseInt(el.getAttribute("MAXBYTE"))) 
			{
				maxbyte = el.getAttribute("MAXBYTE");
				return doError(el,TOO_LONG);
			}
		}

		if (el.getAttribute("OPTION") != null && el.value != "") 
		{
			if (!funcs[el.getAttribute("OPTION")](el)) return false;
		}
	}
	return true;
}

function doError(el,type,action) 
{
	var pattern = /{([a-zA-Z0-9_]+)\+?([가-힣]{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['hphone'] = isValidHphone;
funcs['userid'] = isValidUserid;
funcs['hangul'] = hasHangul;
funcs['number'] = isNumeric;
funcs['engonly'] = alphaOnly;
funcs['jumin'] = isValidJumin;
funcs['bizno'] = isValidBizNo;

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

function isValidUserid(el) 
{
	var pattern = /^[a-zA-Z]{1}[a-zA-Z0-9_]{4,14}$/;
	return (pattern.test(el.value)) ? true : doError(el,"{name+은는} 5자이상 12자 이하이어야 하고,\n 영문,숫자, _ 문자만 사용할 수 있습니다");
}

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

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) 
{
    var pattern = /^([0-9]{6})-?([0-9]{7})$/; 
	var num = 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 (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) 
{	
    var pattern = /([0-9]{3})-?([0-9]{2})-?([0-9]{5})/; 
	var num = 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 isValidHphone(el) 
{
	var pattern = /^([0]{1}[1]{1}[1-9]{1})-?([1-9]{1}[0-9]{2,3})-?([0-9]{4})$/;
	
	if (pattern.exec(el.value)) 
	{
		if(RegExp.$1 == "011" || RegExp.$1 == "016" || RegExp.$1 == "017" || RegExp.$1 == "018" || RegExp.$1 == "019") 
		{
			el.value = RegExp.$1 + "-" + RegExp.$2 + "-" + RegExp.$3;
			return true;
		}
		else
		{
			return doError(el, NOT_VALID);
		}		
	} 
	else 
	{
		return doError(el, NOT_VALID);
	}
}

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

	if (pattern.exec(el.value)) 
	{
		return true;
	} 
	else
	{
		return doError(el, NOT_VALID);
	}
}

function insertUrl(theField) 
{
	var tempval = eval("document."+theField)
	tempval.focus()
	tempval.select()
	therange = tempval.createTextRange()
	therange.execCommand("Copy")
}

function goFocus(strLength, sourceField, targetField) 
{
	strlength = document.all[''+sourceField+''].value.length;

	if (strlength == strLength) 
	{
		document.all[''+targetField+''].focus();
	}
}

function chkNum()
{
	if (event.keyCode >= 48 && event.keyCode <= 57) 
	{
		event.returnValue = true;
	}
	else 
	{
		event.returnValue = false;
	}
}

function goHref(url)
{
	self.location.href = url;
}

function goReplace(url)
{
	self.location.replace(url);
}