$("#my_div").html('value'); not replacing in IE7

I'm u开发者_开发百科sing a simple JQuery call to replace some HTML in a DIV tag after an AJAX call.

$("#my_div").html('value');

This works great in the other browsers, but in IE it is just adding to the DIV instead of replacing the HTML.

Any ideas why that would happen?

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call empty() before html()

$("#my_div").empty().html('value')

I noticed that behavior quite a lot and empty() always fixes the issue.