window.onerror = null;
var topMargin = 30; // À§ÂÊ ¿©¹é
var slideTime = 1200; // ½½¶óÀÌµå ¼Óµµ
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);
var widthPlus = -145;

if(navigator.userAgent.indexOf("MSIE 6.0") > 0 ){
		widthPlus = 45;
}

function layerObject(id, left){
	if (ns6) {
		this.obj = document.getElementById(id).style;
		//this.obj.left = left;
		return this.obj;
	}
	else 
		if (ie4) {
			this.obj = document.all[id].style;
			//this.obj.left = left;
			return this.obj;
		}
		else 
			if (ns4) {
				this.obj = document.layers[id];
				//this.obj.left = left;
				return this.obj;
			}
}

function layerSetup(){
	floatLyr = new layerObject('quick', 0); // ·¹À̾ Ç¥½ÃµÉ À§Ä¡¸¦ ¼³Á¤ÇÕ´Ï´Ù (Áö±ÝÀº È­¸éÇØ»óµµÀÇ 1/20 ·Î ¼³Á¤) .¿À¸¥ÂÊ¿¡¼­ 200Çȼ¿ À§Ä¡¿¡ ¿À°ÔÇÏ·Á¸é pageWidth - 200 À¸·Î ¼³Á¤
	window.setInterval("main()", 10)
}

function floatObject(){
	if (ns4 || ns6) {
		findHt = window.innerHeight;
	}
	else 
		if (ie4) {
			findHt = document.body.clientHeight;
		}
}

function main(){
	if (ns4) {
		this.currentY = document.layers["quick"].top;
		this.scrollTop = window.pageYOffset;
		mainTrigger();
	}
	else 
		if (ns6) {
			this.currentY = parseInt(document.getElementById('quick').style.top);
			this.scrollTop = scrollY;
			mainTrigger();
		}
		else 
			if (ie4) {
				this.currentY = quick.style.pixelTop;
				this.scrollTop = Math.max(document.documentElement.scrollTop, document.body.scrollTop);
				mainTrigger();
			}
}

function mainTrigger(){
	var newTargetY = this.scrollTop + this.topMargin;
	if (this.currentY != newTargetY) {
		if (newTargetY != this.targetY) {
			this.targetY = newTargetY;
			floatStart();
		}
		animator();
	}
}

function floatStart(){
	var now = new Date();
	this.A = this.targetY - this.currentY;
	this.B = Math.PI / (2 * this.slideTime);
	this.C = now.getTime();
	if (Math.abs(this.A) > this.findHt) {
		this.D = this.A > 0 ? this.targetY - this.findHt : this.targetY + this.findHt;
		this.A = this.A > 0 ? this.findHt : -this.findHt;
	}
	else {
		this.D = this.currentY;
	}
}

function animator(){
	var now = new Date();
	var newY = this.A * Math.sin(this.B * (now.getTime() - this.C)) + this.D;
	newY = Math.round(newY);
	if ((this.A > 0 && newY > this.currentY) || (this.A < 0 && newY < this.currentY)) {
		if (ie4) 
			document.all.quick.style.pixelTop = newY;
		if (ns4) 
			document.layers["quick"].top = newY;
		if (ns6) 
			document.getElementById('quick').style.top = newY + "px";
	}
}

function start(){
	if (ns6 || ns4) {
		pageWidth = innerWidth;
		pageHeight = innerHeight;
		layerSetup();
		floatObject();
	}
	else 
		if (ie4) {
			pageWidth = document.body.clientWidth;
			pageHeight = document.body.clientHeight;
			layerSetup();
			floatObject();
		}
}


////////////////////////////////////////////////////////////////////// quick menu end..

// Navigation ( ´ë¸Þ´º )
function topnavi(subMenuNum) {
	var subMenu = "subnav_0";
	for(j=1;j<=4;j++){
		if(j==subMenuNum){
			document.getElementById(subMenu+j).style.display="block";
			document.getElementById("mtab"+j).src = "/eng/images/common/gnb_menu_0"+j+"_over.gif";
		} else {
			document.getElementById(subMenu+j).style.display="none";
			document.getElementById("mtab"+j).src = "/eng/images/common/gnb_menu_0"+j+".gif";
		}
	}
}

//¸Þ´ºÃʱâÈ­
function neo(dep1, dep2){
	for(i=1; i <= 4; i++){
		document.getElementById("subnav_0"+i).style.display = "none";
		document.getElementById("mtab"+i).src = "/eng/images/common/gnb_menu_0"+i+".gif";
	}
	if(!document.getElementById("subnav_0"+dep1)) return false;

	document.getElementById("subnav_0"+dep1).style.display = "block";
	document.getElementById("mtab"+dep1).src = "/eng/images/common/gnb_menu_0"+dep1+"_over.gif";

	topDmenu(dep1, dep2);
}

/* ´ë¸Þ´º ¼­ºêµª½º ¿À¹ö¹× Çö»óÀ¯Áö */
function topDmenu(d1, d2) {
	choiceDepth = "choice" + d1 + "_" + d2;
	var bMenu = "subnav_0";
	for(j=1;j<=4;j++){

		bnav = document.getElementById(bMenu+j);
		bmenuEl = bnav.getElementsByTagName("li");

		for(i = 0; i < bmenuEl.length; i++) {
			if (bmenuEl.item(i).id == choiceDepth) {
				bmenuEl.item(i).getElementsByTagName("a").item(0).className = "g_link_on";
				
				//bmenuEl.item(i).getElementsByTagName("img").item(0).src = bmenuEl.item(i).getElementsByTagName("img").item(0).src.replace(".gif", "_over.gif");
			} else {
				//bmenuEl.item(i).getElementsByTagName("img").item(0).src = bmenuEl.item(i).getElementsByTagName("img").item(0).src.replace("_over.gif", ".gif");
				//bmenuEl.item(i).getElementsByTagName("img").item(0).onmouseover = menuOver;
				//bmenuEl.item(i).getElementsByTagName("img").item(0).onmouseout = menuOut;
			}
		}
	}
}

/* roll over-out image ( ¸Þ´º À̹ÌÁö ·Ñ¿À¹ö )*/
function menuOver() {
	this.src = this.src.replace(".gif", "_over.gif");
}
function menuOut() {
	this.src = this.src.replace("_over.gif", ".gif");
}