// ¸ÞÀθ޴º ½ºÅ©¸³Æ®
function initNavigation(seq) {
	nav = document.getElementById("topmenu");
	nav.menu = new Array();
	nav.current = null;
	nav.menuseq = 0;
	navLen = nav.childNodes.length;

	allA = nav.getElementsByTagName("a")
	for(k = 0; k < allA.length; k++) {
		allA.item(k).onmouseover = allA.item(k).onfocus = function () {
			nav.isOver = true;
		}
		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) {
						menuImg = nav.current.childNodes.item(0);
						if(menuImg.tagName == "IMG") {
							if(menuImg.src.match("_on.gif"))
								menuImg.src = menuImg.src.replace("_on.gif", ".gif");
						}
						if (nav.current.submenu)
							nav.current.submenu.style.display = "none";
						nav.current = null;
					}
				}
			}, 2000);
		}
	}

	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("ul").item(0);
		
		navAnchor.onmouseover = navAnchor.onfocus = function () {
			if (nav.current) {
				menuImg = nav.current.childNodes.item(0);
				if(menuImg.tagName == "IMG") {
					if(menuImg.src.match("_on.gif"))
						menuImg.src = menuImg.src.replace("_on.gif", ".gif");
				}
				if (nav.current.submenu)
					nav.current.submenu.style.display = "none";
				nav.current = null;
			}
			if (nav.current != this) {
				menuImg = this.childNodes.item(0);
				if(menuImg.tagName == "IMG") {
					if(!menuImg.src.match("_on.gif"))
						menuImg.src = menuImg.src.replace(".gif", "_on.gif");
				}
				if (this.submenu)
					this.submenu.style.display = "block";					
				nav.current = this;
			}
			nav.isOver = true;
		}
		nav.menuseq++;
		nav.menu[nav.menuseq] = navAnchor;
	}
	if (nav.menu[seq])
		nav.menu[seq].onmouseover();
}

// ¼­ºê¸Þ´º ½ºÅ©¸³Æ®
function initSubMenu(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var thismenu;

	for(var i=0; i<tabAnchor.length; i++) {
		if(tabAnchor.item(i).className == "on"){
				tabImg = tabAnchor.item(i).getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace(".gif", "_on.gif");
				continue;
		}else if (tabAnchor.item(i).className != "on")
				thismenu = tabAnchor.item(i);
		else
				continue;

		thismenu.onmouseover = function() {
				tabImg = this.getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace("_on.gif", ".gif");
				tabImg.src = tabImg.src.replace(".gif", "_on.gif"); 
		}
		thismenu.onmouseout = function() { 
				tabImg = this.getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace("_on.gif", ".gif");
		}
	}
}

// ÀÌ¿ë¹æ¹ý ÅǸ޴º ½ºÅ©¸³Æ®
function initCommonTabMenu(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var thismenu;

	for(var i=0; i<tabAnchor.length; i++) {
		if(tabAnchor.item(i).className == "on"){
				tabImg = tabAnchor.item(i).getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace("_off.gif", "_on.gif");
				continue;
		}else if (tabAnchor.item(i).className != "on")
				thismenu = tabAnchor.item(i);
		else
				continue;

		thismenu.onmouseover = function() {
				tabImg = this.getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace("_on.gif", "_off.gif");
				tabImg.src = tabImg.src.replace("_off.gif", "_on.gif"); 
		}
		thismenu.onmouseout = function() { 
				tabImg = this.getElementsByTagName("img").item(0); 
				tabImg.src = tabImg.src.replace("_on.gif", "_off.gif");
		}
	}
}