/*-------------------------------------------------
Common Javascript
Version : 1.0
Author : Eunseon Choi
Designer : MyeongHee Park
create date : 2008. 09. 01
last update : 2008. 09. 01
-------------------------------------------------*/

// Top Menu
function initNavigation(seq) {
	var nav = document.getElementById("gnavigation");
	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);
						menuImg.src = menuImg.src.replace("_on.gif", ".gif");
						if (nav.current.submenu)
							nav.current.submenu.style.display = "none";
						nav.current = null;
					}
				}
			}, 1000);
		}
	}

	for (i = 0; i < navLen; i++) {
		navItem = nav.childNodes.item(i);
		if (navItem.tagName != "LI")
			continue;

		var 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);
				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);
				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;
	}

	for( i = 1 ; i <= nav.menuseq ; i++ ) {
		if( nav.menu[i].submenu ) {
			var subm = nav.menu[i].submenu;

			for( var j = 0 ; j < subm.childNodes.length ; j++ ) {
				navItem = subm.childNodes.item(j);
				if( navItem.tagName != "LI" ) continue;
				var subImg = navItem.getElementsByTagName("img").item(0);
				subImg.onmouseover = subImg.onfocus = function() {
					this.src = this.src.replace(".gif", "_on.gif");
				}
				subImg.onmouseout = subImg.onblur = function() {
					this.src = this.src.replace("_on.gif", ".gif");
				}

			}
		}
	}

	if (nav.menu[seq])
		nav.menu[seq].onmouseover();
}

function imageOver(anchor) {
	var imgEl = anchor.getElementsByTagName("img").item(0);
	if( imgEl.src.indexOf("_ov.gif") < 0 && imgEl.src.indexOf("_on.gif") < 0) imgEl.src = imgEl.src.replace(".gif", "_ov.gif");
}
function imageOut(anchor) {
	var imgEl = anchor.getElementsByTagName("img").item(0);
	if( imgEl.src.indexOf("_ov.gif") > -1 ) imgEl.src = imgEl.src.replace("_ov.gif", ".gif");
}

//½½¶óÀ̵ù¸Þ´º//
function initMoving(target, topPosition, topLimit, btmLimit) {
	if (!target)
		return false;

	var obj = target;
	obj.initTop = topPosition;
	obj.topLimit = topLimit;
	obj.bottomLimit = document.documentElement.scrollHeight - btmLimit;

	obj.style.position = "absolute";
	obj.top = obj.initTop;
	obj.left = obj.initLeft;
	obj.style.top = obj.top + "px";

	obj.getTop = function() {
		if (document.documentElement.scrollTop) {
			return document.documentElement.scrollTop;
		} else if (window.pageYOffset) {
			return window.pageYOffset;
		} else {
			return 0;
		}
	}
	obj.getHeight = function() {
		if (self.innerHeight) {
			return self.innerHeight;
		} else if(document.documentElement.clientHeight) {
			return document.documentElement.clientHeight;
		} else {
			return 500;
		}
	}
	obj.move = setInterval(function() {
		//pos = obj.getTop() + obj.getHeight() / 2 - 15;
		pos = obj.getTop() + topPosition;

		if (pos > obj.bottomLimit)
			pos = obj.bottomLimit
		if (pos < obj.topLimit)
			pos = obj.topLimit

		interval = obj.top - pos;
		obj.top = obj.top - interval / 3;
		obj.style.top = obj.top + "px";
	}, 30)
}

/* TOP MENU SCRIPT
-------------------------------------------------*/
function initTopMenu(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var i = 0;

	for(i=0; i<tabAnchor.length; i++) {
		thismenu = tabAnchor.item(i);
		thismenu.container = tabContainer;
		thismenu.imgEl = thismenu.getElementsByTagName("img").item(0);
		thismenu.onmouseover = thismenu.onfocus = topMenuFocus;
		
		if (!thismenu.container.first)
			thismenu.container.first = thismenu;
	}
}

/* TAB MENU SCRIPT
-------------------------------------------------*/
function initTabMenu(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var i = 0;

	for(i=0; i<tabAnchor.length; i++) {
		thismenu = tabAnchor.item(i);
		thismenu.container = tabContainer;
		thismenu.targetEl = document.getElementById(tabAnchor.item(i).href.split("#")[1]);
		thismenu.targetEl.style.display = "none";
		thismenu.imgEl = thismenu.getElementsByTagName("img").item(0);
		thismenu.onclick = tabMenuClick;
		
		if (!thismenu.container.first)
			thismenu.container.first = thismenu;
	}
	tabContainer.first.onclick();
}

function initTabMenu2(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var i = 0;

	for(i=0; i<tabAnchor.length; i++) {
		thismenu = tabAnchor.item(i);
		thismenu.container = tabContainer;
		thismenu.targetEl = document.getElementById(tabAnchor.item(i).href.split("#")[1]);
		thismenu.targetEl.style.display = "none";
		//thismenu.imgEl = thismenu.getElementsByTagName("img").item(0);
		//thismenu.onclick = tabMenuClick;
		
		if (!thismenu.container.first)
			thismenu.container.first = thismenu;
	}
	tabContainer.first.onclick();
}

function initTabMenu4(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var i = 0;

	for(i=0; i<tabAnchor.length; i++) {
		thismenu = tabAnchor.item(i);
		thismenu.container = tabContainer;
		thismenu.targetEl = document.getElementById(tabAnchor.item(i).href.split("#")[1]);
		thismenu.targetEl.style.display = "none";
		thismenu.imgEl = thismenu.getElementsByTagName("img").item(0);
		thismenu.onclick = tabMenuClick;
		
		if (!thismenu.container.first)
			thismenu.container.first = thismenu;

		if( i == 1 ) thismenu.container.second = thismenu;
	}
	tabContainer.second.onclick();
}

function tabMenuClick() {
	var currentmenu = this.container.current;
	if (currentmenu != this) {
		if (currentmenu) {
			currentmenu.targetEl.style.display = "none";
			if (currentmenu.imgEl) {
				currentmenu.imgEl.src = currentmenu.imgEl.src.replace("_on.gif", ".gif");
			} else {
				currentmenu.className = currentmenu.className.replace(" on", "");
			}
		}

		this.targetEl.style.display = "block";
		if (this.imgEl) {
			this.imgEl.src = this.imgEl.src.replace(".gif", "_on.gif");
		} else {
			this.className += " on";
		}
		this.container.current = this;
	}
	return false;
}


function topMenuFocus() {
	var currentmenu = this.container.current;
	if (currentmenu != this) {
		if (currentmenu) {
			if (currentmenu.imgEl) {
				currentmenu.imgEl.src = currentmenu.imgEl.src.replace("_on.gif", ".gif");
			} else {
				currentmenu.className = currentmenu.className.replace(" on", "");
			}
		}

		if (this.imgEl) {
			this.imgEl.src = this.imgEl.src.replace(".gif", "_on.gif");
		} else {
			this.className += " on";
		}
		this.container.current = this;
	}
	return false;
}

// Tab Content
function initTabMenu3(tabContainerID) {
	var tabContainer = document.getElementById(tabContainerID);
	var tabLi = tabContainer.getElementsByTagName("li");
	var tabAnchor = tabContainer.getElementsByTagName("a");
	var i = 0;

	for(i=0; i<tabAnchor.length; i++) {
		if (tabAnchor.item(i).className == "tab")
			thismenu = tabAnchor.item(i);
		else
			continue;

		thismenu.container = tabContainer;
		thismenu.targetEl = document.getElementById(tabAnchor.item(i).href.split("#")[1]);
		thismenu.targetEl.style.display = "none";
		thismenu.targetLi = tabAnchor.item(i).parentNode;
		thismenu.onclick = tabMenuClick3;
		
		if (!thismenu.container.first)
			thismenu.container.first = thismenu;
	}
	tabContainer.first.onclick();
}
function tabMenuClick3() {
	currentmenu = this.container.current;
	if (currentmenu != this) {
		if (currentmenu) {
			currentmenu.targetEl.style.display = "none";
			currentmenu.targetLi.className = "";
		}

		this.targetEl.style.display = "block";
		this.targetLi.className = "selected";
		this.container.current = this;
	}
	return false;
}

//Àüü¸Þ´º º¸±â
function showAllMenu() {
	var menu = document.getElementById("menu_all_view");

	if( menu ) {
		menu.style.display = "block";
	}
}

function closeAllMenu() {
	var menu = document.getElementById("menu_all_view");

	if( menu ) {
		menu.style.display = "none";
	}
}