$(document).ready( function()
{
	
//image rollover for top navigation
PEPS.rollover.init();

//open a new window with class "external"
$('a.external').click(function(){
	window.open(this.href);
	return false;
});


// Drop down menu

$("ul.sf-menu")
	.superfish({
		animation : { opacity:"show"}
});



//toggle sitemap

$('#sitemap').hide();

$('#sitemapBtn').click(function() {
  $('#sitemap').toggle(400);
  return false;
});


});






PEPS = {};

PEPS.rollover =
{
   init: function()
   {
      this.preload();
     
      $(".ro").hover(
         function () { $(this).attr( 'src', PEPS.rollover.newimage($(this).attr('src')) ); },
         function () { $(this).attr( 'src', PEPS.rollover.oldimage($(this).attr('src')) ); }
      );
   },

   preload: function()
   {
      $(window).bind('load', function() {
         $('.ro').each( function( key, elm ) { $('<img>').attr( 'src', PEPS.rollover.newimage( $(this).attr('src') ) ); });
      });
   },
   
   newimage: function( src )
   {
      return src.substring( 0, src.search(/(\.[a-z]+)$/) ) + '_o' + src.match(/(\.[a-z]+)$/)[0];
   },

   oldimage: function( src )
   {
      return src.replace(/_o\./, '.');
   }
};