var NAV_BG_PATH = "images/home/icon/";
var NAV_ON_IMG = ["nav_1_on.gif","nav_2_on.gif","nav_3_on.gif","nav_4_on.gif","nav_5_on.gif","nav_6_on.gif"];
var NAV_OFF_IMG = ["nav_1_off.gif","nav_2_off.gif","nav_3_off.gif","nav_4_off.gif","nav_5_off.gif","nav_6_off.gif"];

var timeout = function(){};

function DisplaySubMenu(sid){
  for(var i=1; i<7; i++){
    $("#sub_"+i).css("display","none");
    $("#super_"+i).attr("src",NAV_BG_PATH+NAV_OFF_IMG[i-1]);
  }
  $("#sub_"+sid).css("display","");
  $("#super_"+sid).attr("src",NAV_BG_PATH+NAV_ON_IMG[sid-1]);
}

function SetSuperBG(sid){
  clearTimeout(timeout);
  $("#super_"+sid).attr("src",NAV_BG_PATH+NAV_ON_IMG[sid-1]);
}

function DisplayOutBG(sid){
  //if ($("#sub_"+sid).css("display") == "none"){
    $("#super_"+sid).attr("src",NAV_BG_PATH+NAV_OFF_IMG[sid-1]);
    timeout = setTimeout( function () { $("#sub_"+sid).css("display", "none"); },0);
  //}
}

function ClearAllBG(sid){
  $("#super_"+sid).attr("src",NAV_BG_PATH+NAV_OFF_IMG[sid-1]);
  $("#sub_"+sid).css("display", "none");
}