if (window!= top)
  top.location.href=location.href

if(document.images) {  

    var nav_a = new Image();
    nav_a.src = "/images/nav/nav_a.gif";
    var nav_a_on = new Image();
    nav_a_on.src = "/images/nav/nav_a_on.gif";
    var nav_a_over = new Image();
    nav_a_over.src = "/images/nav/nav_a_on.gif";

    var nav_b = new Image();
    nav_b.src = "/images/nav/nav_b.gif";
    var nav_b_on = new Image();
    nav_b_on.src = "/images/nav/nav_b_on.gif";
    var nav_b_over = new Image();
    nav_b_over.src = "/images/nav/nav_b_on.gif";
    
    var nav_c = new Image();
    nav_c.src = "/images/nav/nav_c.gif";
    var nav_c_on = new Image();
    nav_c_on.src = "/images/nav/nav_c_on.gif";
    var nav_c_over = new Image();
    nav_c_over.src = "/images/nav/nav_c_on.gif";
    
    var nav_d = new Image();
    nav_d.src = "/images/nav/nav_d.gif";
    var nav_d_on = new Image();
    nav_d_on.src = "/images/nav/nav_d_on.gif";
    var nav_d_over = new Image();
    nav_d_over.src = "/images/nav/nav_d_on.gif";
    
}
 
// Begin Popup

function loadPopup(url, xw, xh, name, scroll) {

   // SPECIFY THE POPUP WINDOW NAME
   var win_popup_name = name;

   // SPECIFY URL OF MAIN POPUP WINDOW
   var win_popup_url = url;

   // SPECIFY THE WINDOW HEIGHT AND WIDTH
   var win_width = xw;
   var win_height = xh;

   // SPECIFY THE LOCATION OF THE TOP-LEFT CORNER OF THE WINDOW
   var win_left = (screen.width - win_width) / 2;
   var win_top = (screen.height - win_height) / 2;
   var popup_window = window.open(win_popup_url,win_popup_name,'width=' + win_width + ',height=' + win_height + ',top=' + win_top + ',left=' + win_left + ',directories=no,location=no,menubar=no,scrollbars=' + scroll + ',status=no,toolbar=no,resizable=no')
   popup_window.focus();
}

// End Popup

function hover(id1,id2) {
    document.images[id1].src = eval(id2 + ".src");
}