// ¸ÞÀθ޴º ½ºÅ©¸³Æ®
function initNavigation(seq) {
	nav = document.getElementById("gnb");
	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;
					}
				}
			}, 7000);
		}
	}

	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.style.backgroundImage = "none"; // 1Â÷¸Þ´º¿¡ ¹è°æÀÖÀ»¶§
					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";
					this.submenu.style.width = "700px";
					this.style.backgroundImage = "url(../images/common/mainmenu/menu_on.gif)"; // 1Â÷¸Þ´º¿¡ ¹è°æÀÖÀ»¶§
					this.style.backgroundRepeat = "no-repeat";
					this.style.backgroundPosition = "center bottom";
					nav.current = this;
			}
			nav.isOver = true;
		}
		nav.menuseq++;
		nav.menu[nav.menuseq] = navAnchor;
	}
	if (nav.menu[seq])
		nav.menu[seq].onmouseover();
}