// 
// Preload the images
// 
if (document.images)
{
  var navButtonTop_home = new Image();
  navButtonTop_home = "http://www.rbdeveloper.com/images/navimages/home-top.jpg";
  
  var navButtonTop_store = new Image();
  navButtonTop_store = "http://www.rbdeveloper.com/images/navimages/store-top.jpg";
  
  var navButtonTop_browse = new Image();
  navButtonTop_browse = "http://www.rbdeveloper.com/images/navimages/browse-top.jpg";
  
  var navButtonTop_support = new Image();
  navButtonTop_support = "http://www.rbdeveloper.com/images/navimages/support-top.jpg";
  
  var navButtonTop_contribute = new Image();
  navButtonTop_contribute = "http://www.rbdeveloper.com/images/navimages/contribute-top.jpg";
  
  var navButtonTop_null = new Image;
  navButtonTop_null = "http://www.rbdeveloper.com/images/navimages/home-top.jpg";
  
  // Menu buttons
  var navButton_home = new Image();
  navButton_home = "http://www.rbdeveloper.com/images/navimages/home.gif";
  var navButton_home_over = new Image();
  navButton_home_over = "http://www.rbdeveloper.com/images/navimages/home-over.gif";
  
  var navButton_store = new Image();
  navButton_store = "http://www.rbdeveloper.com/images/navimages/store.gif";
  var navButton_store_over = new Image();
  navButton_store_over = "http://www.rbdeveloper.com/images/navimages/store-over.gif";
  
  var navButton_browse = new Image();
  navButton_browse = "http://www.rbdeveloper.com/images/navimages/browse.gif";
  var navButton_browse_over = new Image();
  navButton_browse_over = "http://www.rbdeveloper.com/images/navimages/browse-over.gif";
  
  var navButton_support = new Image();
  navButton_support = "http://www.rbdeveloper.com/images/navimages/support.gif";
  var navButton_support_over = new Image();
  navButton_support_over = "http://www.rbdeveloper.com/images/navimages/support-over.gif";
  
  var navButton_contribute = new Image();
  navButton_contribute = "http://www.rbdeveloper.com/images/navimages/contribute.gif";
  var navButton_contribute_over = new Image();
  navButton_contribute_over = "http://www.rbdeveloper.com/images/navimages/contribute-over.gif";
  
}


function rollon(obj){

switch (obj.src)
{
case navButton_home:
    obj.src = navButton_home_over;
    document.getElementById("topPict").src = navButtonTop_home;
    break
case navButton_store:
    obj.src = navButton_store_over;
    document.getElementById("topPict").src = navButtonTop_store;
    break
case navButton_browse:
    obj.src = navButton_browse_over;
    document.getElementById("topPict").src = navButtonTop_browse;
    break
case navButton_support:
    obj.src = navButton_support_over;
    document.getElementById("topPict").src = navButtonTop_support;
    break
case navButton_contribute:
    obj.src = navButton_contribute_over;
    document.getElementById("topPict").src = navButtonTop_contribute;
    break
case navButton_home_over:
    obj.src = navButton_home;
    document.getElementById("topPict").src = navButtonTop_null;
    break
case navButton_store_over:
    obj.src = navButton_store;
    document.getElementById("topPict").src = navButtonTop_null;
    break
case navButton_browse_over:
    obj.src = navButton_browse;
    document.getElementById("topPict").src = navButtonTop_null;
    break
case navButton_support_over:
    obj.src = navButton_support;
    document.getElementById("topPict").src = navButtonTop_null;
    break
case navButton_contribute_over:
    obj.src = navButton_contribute;
    document.getElementById("topPict").src = navButtonTop_null;
    break
}
} // end of function rollon



  function open_subMenu(id){
    var obj = document.getElementById("subMenu");
    var subMenu = document.getElementById(id);
    var uls = obj.getElementsByTagName("p");
    for(i = 0; i < uls.length; i++){
      uls[i].style.display = "none";
    }
    subMenu.style.display = "inline";
    
    // document.getElementById("toppict").style.display = "block";
  } // end of function open_subMenu