auto resize

interesting using jquery 1.3.2
this works fine in chrome

var htmlToAppend = '<div class="logitem"></div>';
			$('div.logbox').append(htmlToAppend);
			$("div.logbox").animate({ scrollTop: $("div.logbox").get(0).scrollHeight}, 300);

but this dont work in chrome

var htmlToAppend = '<div class="logitem"></div>';
			$('div.logbox').append(htmlToAppend);
			$("div.logbox").animate({ scrollTop: $("div.logbox").attr('scrollHeight')}, 300);

ie and ff works well