<!--이미지클릭점선 감추기 시작-->
function bluring(){ 

if(event.srcElement.tagName=="A"||event.srcElement.tagName=="IMG") document.body.focus(); 

} 

document.onfocusin=bluring;

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

<!--이미지클릭점선 감추기 끝-->
<!--PNG 이미지 투명 보이기-->
//var ver = getInternetExplorerVersion();

function setPng24_1(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 '';
}
var pngflag = null;
    
function setPngFlag() {
    var brnm = navigator.appName;
    var brvs = navigator.appVersion;
    
    if(brnm.indexOf('Microsoft') != -1) {
        var version = parseFloat(brvs.split(";")[1].split(" ")[2]);
        if(parseInt(version,10) < 8) pngflag = true;
        else pngflag = false;
    } else {
        pngflag = false;
    }
}

function setPng24(obj) {
    if(pngflag == null) {
        setPngFlag();
    }
    
    if(pngflag == true) {
        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 '';
}
<!--PNG 이미지 투명 보이기 끝-->

function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser)
{
 var rv = -1; // Return value assumes failure
 if (navigator.appName == 'Microsoft Internet Explorer')
 {
  var ua = navigator.userAgent;
  var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
  if (re.exec(ua) != null)
   rv = parseFloat( RegExp.$1 );
 }
 return rv;
}

<!--스크롤 따라 다니는 메뉴-->
var mytop=130;  //처음메뉴의상단위치
function quikclink() {  //스크롤시수행

    //메뉴의상단위치를스크롤의상단위치와비교하여정함
    var m_menu=document.all.hotmenu;
    var s_top=document.body.scrollTop
    m_menu.style.top=s_top>mytop?s_top:mytop;
}
<!--스크롤 따라 다니는 메뉴 끝-->


<!-- 보충/특강 안내 탭관련 시작-->
function MouseOver_crash(idx) {
	divcrash_layer[0].style.display="none"
	divcrash_layer[1].style.display="none"
	divcrash_layer[2].style.display="none"	
	
	divcrash_layer[idx].style.display=""
}

var DUDULayer2_idx = 0;

function Layer_change2()
{
	if( DUDULayer2_idx == 2 )
		DUDULayer2_idx = 0;
	else
		DUDULayer2_idx++;

	MouseOver_crash(DUDULayer2_idx);
}
setInterval("Layer_change2()",6000)
<!-- 보충/특강 안내 탭관련 끝-->
<!-- 입시정보 안내 탭관련 시작-->
function MouseOver_entrance(idx) {
	entrance_layer[0].style.display="none"
	entrance_layer[1].style.display="none"
	entrance_layer[2].style.display="none"	
	
	entrance_layer[idx].style.display=""
}

var DUDULayer3_idx = 0;

function Layer_change3()
{
	if( DUDULayer3_idx == 2 )
		DUDULayer3_idx = 0;
	else
		DUDULayer3_idx++;

	MouseOver_entrance(DUDULayer3_idx);
}
setInterval("Layer_change3()",6000)
<!-- 입시정보 안내 탭관련 끝-->