$(document).ready(function() {
		$('#to_page_top').bind("click", function(event) {
			event.preventDefault();
			var ziel = $(this).attr("href");
			if ($.browser.opera) {
				//Wenn Browser Opera
				var target = 'html';
			}else{
				//Wenn der Browser NICHT Opera
				var target = 'html,body';
			}
			$(target).animate({
				scrollTop: $(ziel).offset().top
			}, 2000 , function (){location.hash = ziel;});
	   });
	return false;
	});