window.addEvent('domready', function() {
    $('lang-es').setStyle('background-position','0 0');
	$('lang-es').addEvent('click',function(){ document.location.href='?lang=es'; });
	$('lang-es').addEvent('mouseenter',function(){ $('lang-es').tween('background-position','-24px 0'); });
    $('lang-es').addEvent('mouseleave',function(){ $('lang-es').tween('background-position','0 0'); });
    $('lang-en').setStyle('background-position','0 0');
   	$('lang-en').addEvent('click',function(){ document.location.href='?lang=en'; });
	$('lang-en').addEvent('mouseenter',function(){ $('lang-en').tween('background-position','-24px 0'); });
    $('lang-en').addEvent('mouseleave',function(){ $('lang-en').tween('background-position','0 0'); });
});