// JavaScript Document

var imgs = new Array();
var imgs_off = new Array();
var imgs_ads_left = new Array();
var imgs_ads_right = new Array();

function loadimgs()
{
 var url,prefix,surfix;
 
 url = "images/";
 prefix = url + "menu_on_";
 prefix_off = url + "menu_off_";
 surffix = ".jpg";
 for(i=1;i<6;i++)
 {
  imgs[i] = new Image;
  imgs_off[i] = new Image;
  imgs_ads_left[i] = new Image;
  imgs_ads_right[i] = new Image;
  imgs[i].src = prefix + i + surffix;
  imgs_off[i].src =  prefix_off + i + surffix;
  imgs_ads_left[i].src = url + "ad/ad"+i+"_1.jpg";
  imgs_ads_right[i].src = url + "ad/ad"+i+"_2.jpg"; 

  }
swapimg(5);
}
function swapimg(id){
var obj;
var labels; 
var adleft,adright;

for(var j=1; j<6;j++){ 
obj = document.getElementById("img"+j); 
labels = document.getElementById("label"+j);

labels.style.display ="none";
//obj.src = prefix_off + j + surffix; 
obj.setAttribute("src",prefix_off + j + surffix);
}
obj = document.getElementById("img"+id);
adleft = document.getElementById("imgleft");
adright = document.getElementById("imgright");

labels = document.getElementById("label"+id);
labels.style.display="block";
obj.src = imgs[id].src;

adleft.src = imgs_ads_left[id].src;

adright.src = imgs_ads_right[id].src;
}