// JavaScript Document
maps = new Array();
maps[0] = "chicago.jpg";
maps[1] = "dc.jpg";
maps[2] = "durban.jpg";
maps[3] = "la.jpg";
maps[4] = "london.jpg";
maps[5] = "ny.jpg";

function swapMap()
	{
	pic = document.getElementById("map");
	rand = Math.round(Math.random() * 5);
	src = "files/maps/" + maps[rand];
	pic.src = src;

	}
function getElement(psID) {
   if(document.all) {
      return document.all[psID];
   } else if(document.getElementById) {
      return document.getElementById(psID);
   } else {
      for (iLayer = 1; iLayer < document.layers.length; iLayer++) {
         if(document.layers[iLayer].id == psID)
            return document.layers[iLayer];
      }      

   }

   return Null;
} 
function swap(idRef)
	{
	id = getElement(idRef);
	id.style.backgroundImage = (id.style.backgroundImage=="url(files/nav_arrow_over.gif)")? "url(files/nav_arrow.gif)" : "url(files/nav_arrow_over.gif)";
	}