/**
 * 체크박스 모두 선택
 */
function checkAllCustomCheckbox() {
    var aChecks = document.forms["listForm"].elements["check"];

    if (null == aChecks) {
        alert("게시물이 없습니다.");
        return;
    }

    if (null == aChecks.length) {
        document.forms["listForm"].check.checked = true;
    } else {
        for (i = 0 ; i < aChecks.length ; i++) {
            aChecks[i].checked = true;
        }
    }
}

/**
 * 체크박스 모두 해제
 */
function uncheckAllCustomCheckbox() {
    var aChecks = document.forms["listForm"].elements["check"];

    if (null == aChecks) {
        alert("게시물이 없습니다.");
        return;
    }

    if (null == aChecks.length) {
        document.forms["listForm"].check.checked = false;
    } else {
        for (i = 0 ; i < aChecks.length ; i++) {
            aChecks[i].checked = false;
        }
    }
}

/**
 * 글을 선택해서 일괄적으로 보고자 호출하는 메소드
 */
function viewList() {
    var eForm = document.forms["listForm"];
    var sForm = document.forms["selectForm"];
    var aChecks = eForm.elements["check"];
    var select = "";

    if (null == aChecks) {
        alert("게시물이 없습니다.");
        return false;
    }
    if (null == aChecks.length) {
        if (eForm.check.checked) {
            select =  eForm.check.value + ",";
        }
    } else {
        for (i = 0 ; i < aChecks.length ; i++) {
            if (aChecks[i].checked) {
                select = select + aChecks[i].getAttribute("value") + ",";
            }
        }
    }
    if (select){
        select = select.substring(0, select.length - 1);
        sForm.select.value = select;
        sForm.submit();
    } else {
        alert("선택한 글이 없습니다.");
    }
}

/**
 * 기간별 목록보기의 유효값 체크 함수
 */
function checkTopten(eForm) {
    var type = eForm.type.selectedIndex;
    var term = eForm.term.selectedIndex;

    if ("" == type) {
        alert("분류를 설정하셔야 합니다.");
        eForm.type.focus();
        return false;
    }

    if ("" == term) {
        alert("기간을 설정하셔야 합니다.");
        eForm.term.focus();
        return false;
    }
    return true;
}

/**
 * '찾기' 창의 유효값 체크 함수
 */
function checkQuery(eForm) {
    if ("" == eForm.query.value) {
        window.alert("찾기 문자열을 입력해 주십시오.");
        eForm.query.focus();
        return false;
    }
    if (eForm.field[2].checked) {
        if (eForm.query.value.length < 1) {
            window.alert("작성자로 검색시 찾기 문자열은 1자 이상이어야 합니다.");
            eForm.query.focus();
            return false;
        }
    } else {
        if (eForm.query.value.length < 2) {
            window.alert("찾기 문자열은 2자 이상이어야 합니다.");
            eForm.query.focus();
            return false;
        }
    }
    return true;
}

/**
 * 말머리 이동
 */
function prefixMove(control) {
    var eForm = document.forms["prefixSearch"];
    var moveTo = control.options[control.selectedIndex].value;

    if ('' != moveTo) {
        eForm.submit();
    } else {
        alert("말머리를 선택해 주십시오.");
    }
}   

/**
 * status 창에 메시지
 */
function statusMessage(str) {
    window.status = str;
    return true;
}

var isWrited = false;
/**
 * 새로운 글쓰기
 */
function checkWrite(eForm) {
    if (isWrited) {
        return false;
    }
    isWrited = true;
    var str;
    var textTypeCheck = false;
    updateForm(); 
    if (isEmpty(eForm.title.value)) {
        alert("제목을 입력해야 합니다.");
        eForm.title.value="";
        eForm.title.focus();
        isWrited = false;
        return false;
    }

    if (eForm.textType.length) {
        for (i = 0 ; i < eForm.textType.length ; i++) {
            if (eForm.textType[i].checked) {
                textTypeCheck = true;
                break;
            }
        }
        if (!textTypeCheck) {
            alert("작성방법을 선택하셔야 합니다.");
            isWrited = false;
            return false;
        }
    } else {
        alert("작성방법을 선택하셔야 합니다.");
        isWrited = false;
        return false;
    }

    if (isEmpty(eForm.text.value)) {
        alert("글 내용이 없습니다.");
        isWrited = false;
        return false;
    }
    
    saveCookie('write', eForm.text.value, 10);
    
    return true;
}

/**말머리가 있는 새로운 글쓰기
 * 삭제 예정
 */
function checkPrefixWrite(eForm) {
    if (isWrited) {
        return false;
    }
    isWrited = true;
    var str;
    var textTypeCheck = false;
    var prefixCheck = false;

    updateForm(); 

    if (eForm.prefixId.selectedIndex == 0) {
        alert("말머리를 선택해주십시오.");
        eForm.prefixId.focus();
        isWrited = false;
        return false;
    }  else {
        for (i = 0 ; i < eForm.prefixId.length ; i++) {
            if (eForm.prefixId[i].selected) {
                prefixCheck = true;
                break;
            }
        }
        if (!prefixCheck) {
            alert("말머리를 선택해주십시오.");
            isWrited = false;
            return false;
        }
    }

    if (isEmpty(eForm.title.value)) {
        alert("제목을 입력해야 합니다.");
        eForm.title.value="";
        eForm.title.focus();
        isWrited = false;
        return false;
    }

    if (eForm.textType.length) {
        for (i = 0 ; i < eForm.textType.length ; i++) {
            if (eForm.textType[i].checked) {
                textTypeCheck = true;
                break;
            }
        }
        if (!textTypeCheck) {
            alert("작성방법을 선택하셔야 합니다.");
            isWrited = false;
            return false;
        }
    } else {
        alert("작성방법을 선택하셔야 합니다.");
        isWrited = false;
        return false;
    }

    if (isEmpty(eForm.text.value)) {
        alert("글 내용이 없습니다.");
        isWrited = false;
        return false;
    }
    
    saveCookie('write', eForm.text.value, 10);
    return true;
}

/**
 * 말머리가 없는 글 수정
 */
function checkUpdate(eForm) {
    var str;
    var textTypeCheck = false;

    updateForm(); 

    if (eForm.currentPrefixId) {
        if (eForm.currentPrefixId.selectedIndex == 0) {
            alert("말머리를 선택해주십시오.");
            eForm.currentPrefixId.focus();
            return false;
        }  else {
            for (i = 0 ; i < eForm.currentPrefixId.length ; i++) {
                if (eForm.currentPrefixId[i].selected) {
                    prefixCheck = true;
                    break;
                }
            }
            if (!prefixCheck) {
                alert("말머리를 선택해주십시오.");
                return false;
            }
        }
    }

    if (eForm.prefixId) {
        if (eForm.prefixId.selectedIndex == 0) {
            alert("말머리를 선택해주십시오.");
            eForm.prefixId.focus();
            return false;
        } else {
            for (i = 0 ; i < eForm.prefixId.length ; i++) {
                if (eForm.prefixId[i].selected) {
                    prefixCheck = true;
                    break;
                }
            }
            if (!prefixCheck) {
                alert("말머리를 선택해주십시오.");
                return false;
            }
        }
    }

    if (isEmpty(eForm.title.value)) {
        alert("제목을 입력해야 합니다.");
        eForm.title.value="";
        eForm.title.focus();
        return false;
    }

    if (eForm.textType.length) {
        for (i = 0 ; i < eForm.textType.length ; i++) {
            if (eForm.textType[i].checked) {
                textTypeCheck = true;
                break;
            }
        }
        if (!textTypeCheck) {
            alert("작성방법을 선택하셔야 합니다.");
            return false;
        }
    } else {
        alert("작성방법을 선택하셔야 합니다.");
        return false;
    }

    if (isEmpty(eForm.text.value)) {
        alert("글 내용이 없습니다.");
        return false;
    }
    return true;
}

/**
 * 말머리가 있는 글 수정
 */
function checkPrefixUpdate(eForm) {
    var str;
    var textTypeCheck = false;
    var prefixCheck = false;

    updateForm(); 

    if (eForm.currentPrefixId.selectedIndex == 0) {
        alert("말머리를 선택해주십시오.");
        eForm.currentPrefixId.focus();
        return false;
    }  else {
        for (i = 0 ; i < eForm.currentPrefixId.length ; i++) {
            if (eForm.currentPrefixId[i].selected) {
                prefixCheck = true;
                break;
            }
        }
        if (!prefixCheck) {
            alert("말머리를 선택해주십시오.");
            return false;
        }
    }

    if (isEmpty(eForm.title.value)) {
        alert("제목을 입력해야 합니다.");
        eForm.title.value="";
        eForm.title.focus();
        return false;
    }

    if (eForm.textType.length) {
        for (i = 0 ; i < eForm.textType.length ; i++) {
            if (eForm.textType[i].checked) {
                textTypeCheck = true;
                break;
            }
        }
        if (!textTypeCheck) {
            alert("작성방법을 선택하셔야 합니다.");
            return false;
        }
    } else {
        alert("작성방법을 선택하셔야 합니다.");
        return false;
    }

    if (isEmpty(eForm.text.value)) {
	    alert("글 내용이 없습니다.");
        return false;
    }
    return true;
}

/**
 * 답글 쓰기에서 원글 첨부
 * form 이름은 editForm
 */
function addMessage() {
    var eForm = document.forms["editForm"];

    if ("true" == eForm.origCheck.value) {
        eForm.defaultEdit.value = "\n-- 원글 -------------\n\n" + eForm.orig.value + "\n--------------------\n\n\n" + eForm.defaultEdit.value ;
        eForm.orig.value = "";
        eForm.origCheck.value = "false";
    } else {
        alert("이미 원글을 첨부하셨습니다.");
    }
}

var isCommentWrited = false;
/**
 * 새 덧글 입력
 */
function checkComment(eForm) {
	if (isCommentWrited) {
		return false;
	}
    if (isEmpty(eForm.text.value)) {
        alert("내용을 입력해 주십시오.");
        eForm.text.value="";
        eForm.text.focus();
        return false;
    }
    isCommentWrited = true;
    return true;    
}

/**
 * 글 삭제를 위한 컨펌창
 */
function doDelete() {
    var delForm = document.forms["deleteForm"];
    if (null == delForm || "" == delForm || undefined == delForm) {
        window.alert("스크립트 에러입니다. 호출이 잘못되었습니다.");
        return;
    }
    if (window.confirm("정말로 삭제하시겠습니까?")) {
        delForm.submit();
    }
}

/**
 * 덧글 삭제를 위한 컨펌창
 */
function doCommentDelete(no) {
    var eForm = eval("document.forms[\"commentDeleteForm"+no+"\"]");

    if (window.confirm("정말로 삭제하시겠습니까?")) {
        eForm.submit();
    }
}

/**
 * 신고에 대한 컨펌창
 */
function checkComplain(URL) {
    if (confirm("신고를 접수하시겠습니까?")) {
        location.href = URL;
    }
}

/**
 * 추천에 대한 컨펌창
 */
function checkRecommend(URL) {
    if (confirm("추천하시겠습니까?")) {
        location.href = URL;
    }
}

/**
 * trim() 함수
 */
function trim(str) {
    if (null == str || 0 == str.length) return str;
    var pattern = /(^[\s　]*)|([\s　]*$)/g;
    return str.replace(pattern, "");
}

function boardImage(element) {
    var obj = $(element);
    if(obj) {
         showLightbox(element);
    }
    
    return false;
}

function resizeImage(element) {
    var obj = $(element);
    if(obj) {
        obj.setStyle({cursor: 'pointer'});
        if(obj.getWidth() > 550) {
            obj.setStyle({width: '550px'});
        }
    }
    return false;
}

function readCookie(name) {
    var label = name + "=";
    var labelLen = label.length;
    var cLen = document.cookie.length;
    var i = 0;

    while (i < cLen) {
            var j = i + labelLen;

            if (document.cookie.substring(i, j) == label) {
                    var cEnd = document.cookie.indexOf(";", j);
                    if (cEnd == -1) cEnd = document.cookie.length;
            return unescape(document.cookie.substring(j, cEnd));
            }
            i++;
        }
      return "";
}

function saveCookie(name, value, expire) {
    var eDate = new Date();
    eDate.setDate(eDate.getDate() + expire);
    document.cookie = name + "=" + escape(value) + "; expires=" +  eDate.toGMTString()+ "; path=/";
}




// lightBox.js
// If you would like to use a custom loading image or close button reference them in the next two lines.
var loadingImage = 'common/light_loading.gif';
var closeButton = 'common/light_close.gif';

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}



//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}


//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//

function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){ hideLightbox(); }
}


//
// listenKey()
//
function listenKey () {	document.onkeypress = getKey; }
	

//
// showLightbox()
// Preloads images. Pleaces new image in lightbox then centers and displays.
//
function showLightbox(objLink)
{
    var iframes = document.getElementsByTagName("iframe");

    for (var i=0; i<iframes.length; i++){
        var iframe = iframes[i];
        iframe.style.visibility = 'hidden';
    }
    
	// prep objects
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lightbox');
	var objCaption = document.getElementById('lightboxCaption');
	var objImage = document.getElementById('lightboxImage');
	var objLoadingImage = document.getElementById('loadingImage');
	var objLightboxDetails = document.getElementById('lightboxDetails');

	
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();

	// center loadingImage if it exists
	if (objLoadingImage) {
		objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
		objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
		objLoadingImage.style.display = 'block';
	}

	// set height of Overlay to take up whole page and show
	objOverlay.style.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';

	// preload image
	imgPreload = new Image();

	imgPreload.onload=function(){
		objImage.src = objLink.src;

		// center lightbox and make sure that the top and left values are not negative
		// and the image placed outside the viewport
		var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
		var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
		
		objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
		objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";


		objLightboxDetails.style.width = imgPreload.width + 'px';
		
		if(objLink.getAttribute('alt')){
			objCaption.style.display = 'block';
			//objCaption.style.width = imgPreload.width + 'px';
			objCaption.innerHTML = objLink.getAttribute('alt');
		} else {
			objCaption.style.display = 'none';
		}
		
		// A small pause between the image loading and displaying is required with IE,
		// this prevents the previous image displaying for a short burst causing flicker.
		if (navigator.appVersion.indexOf("MSIE")!=-1){
			pause(250);
		} 

		if (objLoadingImage) {	objLoadingImage.style.display = 'none'; }

		// Hide select boxes as they will 'peek' through the image in IE
		selects = document.getElementsByTagName("select");
        for (i = 0; i != selects.length; i++) {
                selects[i].style.visibility = "hidden";
        }

	
		objLightbox.style.display = 'block';

		// After image is loaded, update the overlay height as the new image might have
		// increased the overall page height.
		arrayPageSize = getPageSize();
		objOverlay.style.height = (arrayPageSize[1] + 'px');
		
		// Check for 'x' keypress
		listenKey();

		return false;
	}

	imgPreload.src = objLink.src;
	
}





//
// hideLightbox()
//
function hideLightbox()
{
    var iframes = document.getElementsByTagName("iframe");

    for (var i=0; i<iframes.length; i++){
        var iframe = iframes[i];
        iframe.style.visibility = 'visible';
    }
    
	// get objects
	objOverlay = document.getElementById('overlay');
	objLightbox = document.getElementById('lightbox');

	// hide lightbox and overlay
	objOverlay.style.display = 'none';
	objLightbox.style.display = 'none';

	// make select boxes visible
	selects = document.getElementsByTagName("select");
    for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}

	// disable keypress listener
	document.onkeypress = '';
}




//
// initLightbox()
// Function runs on window load, going through link tags looking for rel="lightbox".
// These links receive onclick events that enable the lightbox display for their targets.
// The function also inserts html markup at the top of the page which will be used as a
// container for the overlay pattern and the inline image.
//
function initLightbox()
{
  	if (!document.getElementsByTagName){ return; }
	var anchors = document.getElementsByTagName("a");

	// loop through all anchor tags
	for (var i=0; i<anchors.length; i++){
		var anchor = anchors[i];

		if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){
			anchor.onclick = function () {showLightbox(this); return false;}
		}
	}

	// the rest of this code inserts html at the top of the page that looks like this:
	//
	// <div id="overlay">
	//		<a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a>
	//	</div>
	// <div id="lightbox">
	//		<a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image">
	//			<img id="closeButton" />		
	//			<img id="lightboxImage" />
	//		</a>
	//		<div id="lightboxDetails">
	//			<div id="lightboxCaption"></div>
	//			<div id="keyboardMsg"></div>
	//		</div>
	// </div>
	
	var objBody = document.getElementsByTagName("body").item(0);
	
	// create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.onclick = function () {hideLightbox(); return false;}
	objOverlay.style.display = 'none';
	objOverlay.style.position = 'absolute';
	objOverlay.style.top = '0';
	objOverlay.style.left = '0';
	objOverlay.style.zIndex = '90';
 	objOverlay.style.width = '100%';
	objBody.insertBefore(objOverlay, objBody.firstChild);
	
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();

	// preload and create loader image
	var imgPreloader = new Image();
	
	// if loader image found, create link to hide lightbox and create loadingimage
	imgPreloader.onload=function(){

		var objLoadingImageLink = document.createElement("a");
		objLoadingImageLink.setAttribute('href','#');
		objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
		objOverlay.appendChild(objLoadingImageLink);
		
		var objLoadingImage = document.createElement("img");
		objLoadingImage.src = loadingImage;
		objLoadingImage.setAttribute('id','loadingImage');
		objLoadingImage.style.position = 'absolute';
		objLoadingImage.style.zIndex = '150';
		objLoadingImageLink.appendChild(objLoadingImage);

		imgPreloader.onload=function(){};	//	clear onLoad, as IE will flip out w/animated gifs

		return false;
	}

	imgPreloader.src = loadingImage;

	// create lightbox div, same note about styles as above
	var objLightbox = document.createElement("div");
	objLightbox.setAttribute('id','lightbox');
	objLightbox.style.display = 'none';
	objLightbox.style.position = 'absolute';
	objLightbox.style.zIndex = '100';	
	objBody.insertBefore(objLightbox, objOverlay.nextSibling);
	
	// create link
	var objLink = document.createElement("a");
	objLink.setAttribute('href','#');
	objLink.setAttribute('title','Click to close');
	objLink.onclick = function () {hideLightbox(); return false;}
	objLightbox.appendChild(objLink);

	// preload and create close button image
	var imgPreloadCloseButton = new Image();

	// if close button image found, 
	imgPreloadCloseButton.onload=function(){

		var objCloseButton = document.createElement("img");
		objCloseButton.src = closeButton;
		objCloseButton.setAttribute('id','closeButton');
		objCloseButton.style.position = 'absolute';
		objCloseButton.style.zIndex = '200';
		objLink.appendChild(objCloseButton);

		return false;
	}

	imgPreloadCloseButton.src = closeButton;

	// create image
	var objImage = document.createElement("img");
	objImage.setAttribute('id','lightboxImage');
	objLink.appendChild(objImage);
	
	// create details div, a container for the caption and keyboard message
	var objLightboxDetails = document.createElement("div");
	objLightboxDetails.setAttribute('id','lightboxDetails');
	objLightbox.appendChild(objLightboxDetails);

	// create caption
	var objCaption = document.createElement("div");
	objCaption.setAttribute('id','lightboxCaption');
	objCaption.style.display = 'none';
	objLightboxDetails.appendChild(objCaption);

	// create keyboard message
	//var objKeyboardMsg = document.createElement("div");
	//objKeyboardMsg.setAttribute('id','keyboardMsg');
	//objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> to close';
	//objLightboxDetails.appendChild(objKeyboardMsg);


}




//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}

}



addLoadEvent(initLightbox);	// run initLightbox onLoad