// Top Menu
function initNavigation(seq,sub) {
    nav = document.getElementById("topmenu");
    nav.menu = new Array();
    nav.current = null;
    nav.menuseq = 0;
    navLen = nav.childNodes.length;

    allA = nav.getElementsByTagName("DIV");
    for(k = 0; k < allA.length; k++) {
        allA.item(k).onmouseover = allA.item(k).onfocus = function () {
            nav.isOver = true;
            if(sub) { document.getElementById("menu"+seq+"-"+sub).className="";}
        };
        allA.item(k).onmouseout = allA.item(k).onblur = function () {
            nav.isOver = false;
            setTimeout(function () {
                if (nav.isOver == false) {
                    if (nav.menu[seq]) nav.menu[seq].onmouseover();
                    else if(nav.current) {//마우스가 해당 영역에 벗어 났을때
                        menuImg = nav.current.childNodes.item(0);
                        menuImg.src = menuImg.src.replace("r.gif", ".gif");
                        if (nav.current.submenu) nav.current.submenu.style.display = "none";
                        nav.current = null;
                    }
                }
            }, 500);
        };
    }

    for (i = 0; i < navLen; i++) {
        navItem = nav.childNodes.item(i);
        if (navItem.tagName != "LI") continue;

        navAnchor = navItem.getElementsByTagName("A").item(0);
        navAnchor.submenu = navItem.getElementsByTagName("DIV").item(0);
        navAnchor.onmouseover = navAnchor.onfocus = function () {
            if (nav.current) {
                menuImg = nav.current.childNodes.item(0);
                menuImg.src = menuImg.src.replace("r.gif", ".gif");
                if (nav.current.submenu) nav.current.submenu.style.display = "none";
                nav.current = null;
            }
            if (nav.current != this) {//대메뉴 마우스 올렸을때
                menuImg = this.childNodes.item(0);
                menuImg.src = menuImg.src.replace(".gif", "r.gif");
                if (this.submenu) this.submenu.style.display = "block";
                nav.current = this;
                if(sub) { document.getElementById("menu"+seq+"-"+sub).className="b"; }
            }
            nav.isOver = true;
        }
        nav.menuseq++;
        nav.menu[nav.menuseq] = navAnchor;
    }
    if (nav.menu[seq]) nav.menu[seq].onmouseover();
}
////////////////////////////////////////////////////////////////////////////////////


///////////  PNG-24 IE6버젼에서 투명도 처리 /////////////////////////////////////////
function setPng24(obj) { 
    obj.width=obj.height=1; 
    obj.className=obj.className.replace(/\bpng24\b/i,''); 
    obj.style.filter = 
    "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');" 
    obj.src='';  
    return ''; 
} 

////////////////////////////////////////////////////////////////////////////////////


//메인공지사항 탭
function tabList(ele, active){
	var ele = document.getElementById(ele);
	if(active === undefined) active = 0;						
	
	// tabtit를 포함하는 제목 노드들 수집 
	var btn = ele.getElementsByTagName("*");
	for(var i=0; i<btn.length; i++){
		if(btn[i].className.indexOf('tabtit') != -1){
			btn = btn[i].nodeName;
			btn = ele.getElementsByTagName(btn);
			break;
		}
	}
	
	// 타이틀의 타겟 레이어 이름중 숫자만 뺀 영문만 tab1 중 tab만
	var layerName = btn[0].getElementsByTagName("A")[0].href.split("#")[1];
	layerName = layerName.slice(0, layerName.length-1);
	
	for(var i=0; i<btn.length; i++){
		ele["target" + i] = document.getElementById(layerName + (i+1)); // 노드저장 예) tab1, tab2, tab3
		ele["a" + i] = btn[i].getElementsByTagName("A")[0]; // 탭링크
		ele["img" + i] = btn[i].getElementsByTagName("IMG")[0]; // 이미지노드 저장
		btn[i].style.position = "absolute"; // 제목레이어 적용
		ele.getElementsByTagName("P")[i].style.position = "absolute"; // 더보기 레이어
	}
	
	/* 초기세팅 */
	var oldActive = active;
	for(var i=0; i<btn.length; i++){
		ele["a" + i].cnt = i;
		ele["a" + i].onclick = function menuActive(){
			ele["target" + oldActive].style.display = "none";
			ele["img" + oldActive].src = ele["img" + oldActive].src.replace("_over", "_out");
			
			ele["target" + this.cnt].style.display = "block";
			ele["img" + this.cnt].src = ele["img" + this.cnt].src.replace("_out", "_over");
			oldActive = this.cnt;
			return false;
		}
		
		if(active == i) continue; // 초기 활성화
		ele["target" + i].style.display = "none";
		ele["img" + i].src = ele["img" + i].src.replace("_over", "_out");

	}
}


//////////////////////// 글자 크기 ///////////////////////////////////////////////////////

var tgs = new Array('div','td','tr','table','span', 'li', 'a', 'p');

var szs = new Array( '12px','xx-small','x-small','12px','15px','18px');
var startSz = 3;

function ts( trgt,inc ) {
    try {
        if (!document.getElementById) return
        var d = document,cEl = null,sz = startSz,i,j,cTags;
        sz += inc;
		if ( inc == 3) sz = 3;
        if(sz >= szs.length || sz <= 0) return;
		ss=inc;
        if ( sz < 1 ) sz = 1;
        if ( sz > 6 ) sz = 6;
		if ( ss == 0 ) sz = 0;
        startSz = sz;
        if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];
		 cEl.style.fontSize = szs[ sz ];
        for ( i = 0 ; i < tgs.length ; i++ ) {
                cTags = cEl.getElementsByTagName( tgs[ i ] );
                for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
				//alert(tgs[i]);
        }
    } catch(e) {}
}

/////////////////////////////////////////////////////////////////////////////////////////////////

//리스트 이동버튼 눌렀을경우 이동
function go_site(val){
	var frm = document.link_frm_go;
	if ( val != "" ) {
		frm.target="_self";
		frm.action=val;
		frm.submit();
	}
}

function go_site_blank(val){
	var frm = document.link_frm_go;
	if ( val != "" ) {
		frm.target="_blank";
		frm.action=val;
		frm.submit();
	}
}


// 레프트 메뉴 2depth 클릭시 3depth 아이템 보여줌
function showLeftSub(mnuid) {
	var obj = document.getElementById("leftmenu_" + mnuid);
	
	if (obj.style.display == "block") {
		obj.style.display = "none";
	} else {
		obj.style.display = "block";
	}
}

///// ZonnInOut //////////////////////////////////////////////////////////////////////////////	

var nowZoom = 100; // 현재비율
var maxZoom = 200; // 최대비율
var minZoom = 100; // 최소비율(현재와 같아야 함)

function zoomNo(){
	nowZoom = 100;
	document.body.style.zoom = nowZoom + "%";
}

	//화면 키운다.
var fontSize = 12;
function zoomIn() {
	scaleFont(1);
	return;
	if (nowZoom < maxZoom) {
		nowZoom += 10; // 10%씩 커진다.
	} else {
		return;
	}
	document.body.style.zoom = nowZoom + "%";
}

//화면 줄인다.
function zoomOut() {
	scaleFont(-1);
	return;
	if (nowZoom > minZoom) {
		nowZoom -= 10; // 10%씩 작아진다.
	} else {
		return;
	}

	document.body.style.zoom = nowZoom + "%";
}

function scaleFont(val) {
    //var fontSize = getFontSize();
    var fontSizeSave = fontSize;
    if (val > 0) {
        if (fontSize <= 18) {
			fontSize = fontSize + val;
        }
    } else {
        if (fontSize > 12) {
            fontSize = fontSize + val; 
        }
    }
    if (fontSize != fontSizeSave) {
        drawFont(fontSize);
    }
    set_cookie("educw_fontsize", fontSize, 30); 
}

function getFontSize() {
    var fontSize = parseInt(get_cookie("sen_portal_fontsize")); // 폰트크기 조절
    if (isNaN(fontSize)) { fontSize = 12; }
    return fontSize;
}

function drawFont(fontSize) {
    if (!fontSize) {
        fontSize = getFontSize();
    }
	var loc = document.getElementById("location");
	var contents = document.getElementById("content");
	var submenu = document.getElementById("wrap");
	if(loc)loc.style.fontSize = fontSize + "px";
	if(contents)contents.style.fontSize = fontSize + "px";
	if(submenu)submenu.style.fontSize = fontSize + "px";
}

// 쿠키 입력
function set_cookie(name, value, expirehours, domain) {
	var today = new Date();
	today.setTime(today.getTime() + (60*60*1000*expirehours));
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + today.toGMTString() + ";";
	if (domain) {
		document.cookie += "domain=" + domain + ";";
	}
}

// 쿠키 얻음
function get_cookie(name) {
	var find_sw = false;
	var start, end;
	var i = 0;

	for (i=0; i<= document.cookie.length; i++) {
		start = i;
		end = start + name.length;

		if(document.cookie.substring(start, end) == name) {
			find_sw = true
			break
		}
	}

	if (find_sw == true) {
		start = end + 1;
		end = document.cookie.indexOf(";", start);

		if(end < start)
			end = document.cookie.length;

		return document.cookie.substring(start, end);
	}
	return "";
}

// 쿠키 지움
function delete_cookie(name) {
	var today = new Date();

	today.setTime(today.getTime() - 1);
	var value = get_cookie(name);
	if(value != "")
		document.cookie = name + "=" + value + "; path=/; expires=" + today.toGMTString();
}

// 화면 맨위로 (본문 처음)
function fn_goTop() {
	//location.href = "#";
	//document.documentElement.scrollTop = 0;
	//window.scrollTo(0,0);
	location.href = "#content";
}

// 메인 탭 클릭
function fn_tabClick(containerid, tabid) {
	var objContainer = document.getElementById(containerid);
	var objTabimg = document.getElementById("img_" + tabid);
	var objTabMore = document.getElementById("more_" + tabid);
	var objTab = document.getElementById(tabid);
	
	
	// tabtit를 포함하는 제목 노드들 수집 
	var objTemp = objContainer.getElementsByTagName("*");
	for(var i=0; i<objTemp.length; i++){
		if(objTemp[i].className.indexOf('tabtit') != -1){
			for (var j=0; j<objTemp[i].getElementsByTagName("IMG").length;j++) {
				objTemp[i].getElementsByTagName("IMG")[j].src = objTemp[i].getElementsByTagName("IMG")[j].src.replace("_over", "_out");
			}
			
			for (var j=0; j<objTemp[i].getElementsByTagName("SPAN").length;j++) {
				//objTemp[i].getElementsByTagName("SPAN")[j].src = objTemp[i].getElementsByTagName("SPAN")[j].style.display = "none";
				objTemp[i].getElementsByTagName("SPAN")[j].style.display = "none";
			}
		}
	}
	
	objTemp = objContainer.getElementsByTagName("DIV");
	for (var i=0;i<objTemp.length;i++) {
		if (objTemp[i].className.indexOf("fixed") == -1) {
			objTemp[i].style.display = "none";
		}
	}
	
	
	objTabimg.src = objTabimg.src.replace("_out", "_over")
	
	objTabimg.style.display = "inline";
	
	if (objTabMore) objTabMore.style.display = "inline";
	
	objTab.style.display = "block";
}


// 실무편람 E-BOOK 열기
function ecatalog(docu, kd, dir){
	if(screen.width < 800){
		alert("The screen resolution should be over 800*600");
		return;
	}

	if(kd == "fixed"){ x = 1024; y = 768; wname = "fixed_ecatalog"; }
	else if(screen.width > 1600 || screen.height > 1200){ x = 1600; y = 1200; wname = "ecatalog"; }
	else{ x = screen.width; y = screen.height; wname = "ecatalog"; }

	x = x - 10;
	y = y - 58;

	property = "toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=no,copyhistory=no,";
	property += "width=" + x + ",height=" + y + ",left=" + 0 + ",top=" + 0;
	docu = docu + "/ecatalog.jsp?Dir=" + dir;

	ecawin = window.open(docu, wname, property);
}


// 팝업존 마우스 오버
function fn_popupzoneOver(num) {
	popupzoneAuto_status = "off";
	popupzoneAuto_idx = num;
	
	var divObj = document.getElementById("popup_img");
	var numdivObj = document.getElementById("popup_num_img");
	var numobj = document.getElementById("popupzone_nun_img_" + num);
	var obj = document.getElementById("popupzone_url_" + num);
	
	for (var i=0;i<divObj.getElementsByTagName("A").length;i++) {
		divObj.getElementsByTagName("A")[i].style.display = "none";
	}
	
	for (var i=0;i<numdivObj.getElementsByTagName("IMG").length;i++) {
		numdivObj.getElementsByTagName("IMG")[i].src = numdivObj.getElementsByTagName("IMG")[i].src.replace("_over","_out");
	}
	
	numobj.src = numobj.src.replace("_out","_over");
	obj.style.display = "inline";
}

// 팝업존 마우스 오버 슬라이드
function fn_popupzoneOverAuto(num) {
	var divObj = document.getElementById("popup_img");
	var numdivObj = document.getElementById("popup_num_img");
	var numobj = document.getElementById("popupzone_nun_img_" + num);
	var obj = document.getElementById("popupzone_url_" + num);
	
	for (var i=0;i<divObj.getElementsByTagName("A").length;i++) {
		divObj.getElementsByTagName("A")[i].style.display = "none";
	}
	
	for (var i=0;i<numdivObj.getElementsByTagName("IMG").length;i++) {
		numdivObj.getElementsByTagName("IMG")[i].src = numdivObj.getElementsByTagName("IMG")[i].src.replace("_over","_out");
	}
	
	numobj.src = numobj.src.replace("_out","_over");
	obj.style.display = "inline";
}

// 팝업존 슬라이드 상태 변경
function setPopupzoneAuto_status(stat) {
	popupzoneAuto_status = stat;
}

var popupzoneAuto_idx = 1;
var popupzoneAuto_maxidx = 0;
var popupzoneAuto_status = "on";
function fn_popupzoneAuto() {
	if (popupzoneAuto_status == "on") {
		popupzoneAuto_idx++;
		if (popupzoneAuto_idx > popupzoneAuto_maxidx) popupzoneAuto_idx = 1;
		fn_popupzoneOverAuto("0"+popupzoneAuto_idx);
	}
}

/** 전체메뉴보기*/
function initTopMenuAll() {
	var topmenuAll_show = document.getElementById('topmenuAll_show');
	var topmenuAll_hide = document.getElementById('topmenuAll_hide');
	topmenuAll_show.onclick = function() {
		document.getElementById('topmenuAll').style.display = "block";
		return false;
	}
	topmenuAll_hide.onclick = function() {
		document.getElementById('topmenuAll').style.display = "none";
		var link = document.createElement("a");
		document.getElementById('head').appendChild(link);
		link.setAttribute("href","#");
		link.focus();
	}
}

// Trim : 앞뒤의 공백 제거
function trim(str) {
	str = this != window? this : str;
	return str.replace(/^\s+/, '').replace(/\s+$/, '');
}

// 전체메뉴클릭후 포커스를 전체메뉴의 가장 첫번째 항목으로 강제 이동
function fn_goFocusAllmenuFirst() {
	var topmenuAllObj = document.getElementById('topmenuAll').getElementsByTagName("DIV")[0];
	
	topmenuAllObj.getElementsByTagName("dd")[0].getElementsByTagName("A")[0].focus();
}

// 팝업존 팝업타입 오픈시
function fn_popPopzone(url) {
	var winsrc = "/cms/popzone/popPopzone.jsp?url="+url
	var w = 400;
	var h = 400;
	var lpos = (screen.width) ? (screen.width-w)/2 : 0;
	var tpos = (screen.height) ? (screen.height-h)/2 : 0;
	
	var winoption = "toolbar=no,status=yes,scrollbars=no";
	
	window.open(winsrc,"popPopzone",winoption+",width="+w+",height="+h+",left="+lpos+",top="+tpos);
}


//////////////////////////////////////////////////////////////////////////////////////////

// 바로가기 서비스 스크로따라 다니기

function initMoving(target, position, topLimit, btmLimit) {
	if (!target)
		return false;

	var obj = target;
	obj.initTop = position;
	obj.topLimit = topLimit;
	obj.bottomLimit = document.documentElement.scrollHeight - btmLimit;

	obj.style.position = "relative";
	obj.top = obj.initTop;
	obj.left = obj.initLeft;

	if (typeof(window.pageYOffset) == "number") {
		obj.getTop = function() {
			return window.pageYOffset;
		}
	} else if (typeof(document.documentElement.scrollTop) == "number") {
		obj.getTop = function() {
			return document.documentElement.scrollTop;
		}
	} else {
		obj.getTop = function() {
			return 0;
		}
	}

	if (self.innerHeight) {
		obj.getHeight = function() {
			return self.innerHeight;
		}
	} else if(document.documentElement.clientHeight) {
		obj.getHeight = function() {
			return document.documentElement.clientHeight;
		}
	} else {
		obj.getHeight = function() {
			return 500;
		}
	}

	obj.move = setInterval(function() {
		if (obj.initTop > 0) {
			pos = obj.getTop() + obj.initTop;
		} else {
			pos = obj.getTop() + obj.getHeight() + obj.initTop;
			//pos = obj.getTop() + obj.getHeight() / 2 - 15;
		}

		if (pos > obj.bottomLimit)
			pos = obj.bottomLimit;
		if (pos < obj.topLimit)
			pos = obj.topLimit;

		interval = obj.top - pos;
		obj.top = obj.top - interval / 3;
		obj.style.top = obj.top + "px";
	}, 30)
}