//sub menu show or not
function layer_view (layer_name, layer_display){
	if (layer_display == "view"){
		document.getElementById(layer_name).style.display = "block" ;
	} else {
		document.getElementById(layer_name).style.display = "none" ;
	}
}

function layer_swap (view_name, hide_display){
		document.getElementById(view_name).style.display = "block" ;
		document.getElementById(hide_display).style.display = "none" ;
}


// RollOver
function imageOver(imgs) {
	imgs.src = imgs.src.replace("off.gif", "on.gif");
}
function imageOut(imgs) {
	imgs.src = imgs.src.replace("on.gif", "off.gif");
//  onmouseover="imageOver(this);" onmouseout="imageOut(this);"
} 


//png Åõ¸íÁÖ±â
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='/images/m/blank.gif';¡¡ 
¡¡ ¡¡ return ''; 
} 


//sub menu show or not
function layer_view (layer_name, layer_display){
	if (layer_display == "view"){
		document.getElementById(layer_name).style.display = "block" ;
	} else {
		document.getElementById(layer_name).style.display = "none" ;
	}
}

function layer_swap (view_name, hide_display){
		document.getElementById(view_name).style.display = "block" ;
		document.getElementById(hide_display).style.display = "none" ;
}


// Àüü¸Þ´ºº¸±â Ç÷¡½Ã /////////////////////////////////////

function layerOpen(param){  
	var layerh = (param*160)+30+"px"; 
	document.getElementById('Main_menu').style.height=  layerh
}


/*
function layerOpen(param){
	  alert(param);
}
function layerOpen(param){  
	var layerh = param[0]
	document.getElementById('Main_menu').style.height= param[0]+35+"px";  
}
*/

function FullScreen () {
OpenEBook.winStyle = 0; // full screen window style
OpenEBook.OpenBook(arguments[0], arguments[1]);
}                       

function sizeChange() {
 var x = document.documentElement.clientWidth;
 var y = document.documentElement.clientHeight;

/*
if(x <= 1100){
  document.getElementById("Main_menu").style.width = "1100px";
	document.getElementById("ngnb").style.width = "1100px";
}else{
  document.getElementById("Main_menu").style.width = "100%";
	document.getElementById("ngnb").style.width = "100%";
}
if(y <= 840){
	document.getElementById("ngnb").style.height = "840px";
}else{
	document.getElementById("ngnb").style.height = "100%";
}
*/
	
}
window.onload = sizeChange;
window.onresize = sizeChange;


// ¸ÞÀÎÅǸ޴º /////////////////////////////////////////
function showHideElem1(_objId, _param_split){
	var showObj = document.getElementById(_objId);
	if(!showObj) return false;
	//³ªÅ¸³¾ °´Ã¼°¡ ÀÖ°í ¼û±æ °´Ã¼°¡ ´Ù¼öÀΰæ¿ì
	if(_param_split){
		//¼û±æ °´Ã¼µé ¹®ÀÚ¿­(¾ð´õ¹Ù¸¦ ±¸ºÐÀÚ·Î ÆĶó¸ÞÅ͸¦ ¹Þ´Â´Ù)
		var hideObjId_arr = _param_split.split("_");
		//¼û±æ °´Ã¼ ¹è¿­
		var hideObj_arr = Array();
		for(i=0; i<hideObjId_arr.length; i++){
			hideObj_arr[i] = document.getElementById(hideObjId_arr[i]);
		}
		//¼û±æ °´Ã¼ ¼û±â±â
		for(i=0; i<hideObj_arr.length; i++){
			if(hideObj_arr[i].style){
				hideObj_arr[i].style.display = "none";
			}else{
				return false;
			}
		}
		//³ªÅ¸³¾ °´Ã¼ ³ªÅ¸³»±â
		showObj.style.display = "block";
	}
	//³ªÅ¸³»°Å³ª ¼û±æ °´Ã¼°¡ ÇÑ°³ÀÎ °æ¿ì 
	else{
		if(showObj.style.display == "block"){
			showObj.style.display = "none";
		}else{
			showObj.style.display = "block";
		}
	}
}