/*
 * Description		: script for site skin
 * Author			: Kim Dong-kyu (superkdk@tt.co.kr)
 * Last Modified	: 2004.09.08
 */

/* Menu °ü·Ã script */
// global variable
var lv1_count = 0;	// Lv1 ¸Þ´ºÀÇ °¹¼ö
var lv1_last = 0;	// Lv1 ¸Þ´ºÀÇ ¸¶Áö¸· label

function setLastLv1(label) {
	lv1_count++;
	lv1_last = label;
}

function setMenuWidth() {
	// Level 1 ¸Þ´ºÀÇ ÆøÀ» ¸ÂÃçÁØ´Ù.
	for(i = 0; i <= lv1_last; i++) {
		var oMenu = document.getElementById("menu" + i);
		if(oMenu) oMenu.width = (100 / lv1_count) + "%";
	}
}

function sub_menu(idx) {
	var oMenu = document.getElementById("menu" + idx);
	var oSubmenu;

	// hide submenu.
	for(var i = 1; i <= 4; i++) {
		oSubmenu = document.getElementById("submenu"+i);
		if(oSubmenu) oSubmenu.style.display = "none";
	}

	// show submenu.
	oSubmenu = document.getElementById("submenu"+idx);
	if(oSubmenu) oSubmenu.style.display = "block";

	// left padding
	var oPadd = document.getElementById("padd"+idx+"_l");
	if(oPadd && oMenu.offsetLeft) oPadd.width = oMenu.offsetLeft;
}

function na_restore_img_src(name, nsdoc)
{
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
    return;
  if (img && img.altsrc) {
    img.src    = img.altsrc;
    img.altsrc = null;
  } 
}

function na_preload_img()
{ 
  var img_list = na_preload_img.arguments;
  if (document.preloadlist == null) 
    document.preloadlist = new Array();
  var top = document.preloadlist.length;
  for (var i=0; i < img_list.length-1; i++) {
    document.preloadlist[top+i] = new Image;
    document.preloadlist[top+i].src = img_list[i+1];
  } 
}

function na_change_img_src(name, nsdoc, rpath, preload)
{ 
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
    return;
  if (img) {
    img.altsrc = img.src;
    img.src    = rpath;
  } 
}