问题描述
我有一个聊天系统在我的网站和拖欠消息DIV位置，始终显示在页面加载的最后一条消息。我用下面一行的code做到了这一点：
I have a chat system on my site and defaulted the message div position to always display the last message on page load. I accomplished this by using the following line of code:
msgDiv = document.getElementById('message_row_large');
msgDiv.scrollTop = msgDiv.scrollHeight;
然而，这code设置滚动位置等于DIV高度在任何时候，它不允许用户滚动，看看其他消息。
However, this code sets the scroll position to be equal to the div height at all times, which doesn't allow users to scroll up and see other messages.
我需要在页面加载后重新启用滚动到它的默认功能。欢迎任何帮助。
I need to re-enable scroll to its default functionality after the page loads. ANy help is welcome.
感谢您！
P.S。我使用Ajax加载的聊天信息。当用户点击一个名字左边面板上，他的聊天/她和其他人的负载右侧面板上。
P.S. I am using ajax to load chat messages. When user clicks on a name on the left hand panel, the chat between him/her and the other person loads on the right hand panel.
推荐答案
尝试
$display = $('#message_row_large');
$display.animate({scrollTop: $display[0].scrollHeight }, 'fast');
工作小提琴：
Working Fiddle:
https://jsfiddle.net/cshanno/3bo48dxj/1/
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