//»ó´Ü ¸Þ´º
function load_topmenu(obj,sel_num) {
 if(!obj) return;
 var canvas = document.getElementById(obj);
 if(!canvas.children.length) return;
 var selected_num = sel_num;
 for(var i=0; i < canvas.children.length; i++) {
  var num = canvas.children[i].id.replace(/[a-zA-Z_]+/,"");
  var menu_link = document.getElementById("link_topmenu_"+ num);
  menu_link.onmouseover = menu_link.onfocus = function() {
   this_num = this.id.replace(/[a-zA-Z_]+/,"");
   set_style_topmenu(selected_num,"off");
   set_style_topmenu(this_num,"on");
   selected_num = this_num;
  };
 }
 if(sel_num) set_style_topmenu(sel_num,"on");
}
//½ºÅ¸ÀÏ º¯°æ
function set_style_topmenu(sel_num,toggle) {
 var menu_img = document.getElementById("img_topmenu_"+ sel_num);
 var menu_sub = document.getElementById("submenu_"+ sel_num);
 if(toggle == "on") {
  if(menu_img) menu_img.src = "./img/images/menu0"+ sel_num +"_on.gif";
  if(menu_sub) menu_sub.className = "display_on";
 } else {
  if(menu_img) menu_img.src = "./img/images/menu0"+ sel_num +"_off.gif";
  if(menu_sub) menu_sub.className = "display_off";
 }
}
//¸Þ´ºÀüüº¸±â Åä±Û
function toggle_layer(str,alt_text) {
 var obj_list = document.getElementById(str);
 var obj_link = document.getElementById("link_"+ str);
 var obj_button = document.getElementById("img_"+ str);
 if(obj_list && obj_link) {
  obj_link.onmousedown = obj_link.onkeypress = function() {
   if(obj_list.style.display == "none") {
    obj_list.style.display = "block";
    obj_button.src = obj_button.src.replace("view","close");
    obj_button.alt = alt_text + " ´Ý±â";
   } else {
    obj_list.style.display = "none";
    obj_button.src = obj_button.src.replace("close","view");
    obj_button.alt = alt_text + " º¸±â";
   }
  }
 }
}
//ÁÂÃø ¸Þ´º
function set_leftmenu(obj,sub_num) {
 if(!obj) return;
 var canvas = document.getElementById(obj);
 if(!canvas.children.length) return;
 this_num = sub_num;
 for(var i=1; i <= canvas.children.length; i++) {
  var j = canvas.children[i-1].id.replace(/[a-zA-Z_]+/,"");
  var obj_submenu = document.getElementById("lmenu_sub_"+ j);
  if(obj_submenu) {
   var obj_link = document.getElementById("lmenu_link_"+ j);
   obj_link.onmousedown = function() { this_num = this.id.replace(/[a-zA-Z_]+/,""); show_leftmenu(this_num,""); };
   obj_link.onfocus = function() { if(this_num != this.id.replace(/[a-zA-Z_]+/,"")) show_leftmenu(this.id.replace(/[a-zA-Z_]+/,""),"show"); };
   obj_link.onkeypress = function() { show_leftmenu(this.id.replace(/[a-zA-Z_]+/,""),""); };
   document.getElementById("lmenu_list_"+ j).className = "show_on";
   if(sub_num == j) show_leftmenu(j,"show");
  }
  if(document.getElementById("lmenu_list_"+ j)) {
   if(sub_num == j) {
    document.getElementById("lmenu_list_"+ j).className = "show_off";
    document.getElementById("lmenu_link_"+ j).className = "now";
   }
  }
 }
}
function show_leftmenu(sub_num,view) {
 if(view == "show") {
  toggle_leftmenu(sub_num,"on");
 } else if(view == "hide") {
  toggle_leftmenu(sub_num,"off");
 } else if(view == "") {
  if(document.getElementById("lmenu_sub_"+ sub_num).style.display == "none") {
   toggle_leftmenu(sub_num,"on");
  } else {
   toggle_leftmenu(sub_num,"off");
  }
 }
}
function toggle_leftmenu(sub_num,str) {
 var obj_list = document.getElementById("lmenu_list_"+ sub_num);
 var obj_submenu = document.getElementById("lmenu_sub_"+ sub_num);
 var obj_link = document.getElementById("lmenu_link_"+ sub_num);
 if(str == "on") {
  if(obj_list) obj_list.className = "show_off";
  if(obj_link) obj_link.className = "now";
  if(obj_submenu) obj_submenu.style.display = "";
 } else {
  if(obj_list) obj_list.className = "show_on";
  if(obj_link) obj_link.className = "";
  if(obj_submenu) obj_submenu.style.display = "none";
 }
}