JQuery :: Create An Element And Load Data Into It Onclick?

I use following code to create an element and load data into it onclick:

("<div id="element" ></div>").appendTo('#content').load("grid.php");

The first time it loads very fast, 12ms.

I have a close buttons wich removes the element from dom: $("#element").fadeOut('fast').empty().remove();

The second time I execute the onclick event, the first code takes approx 1 second, so much slower. The php code execution time is the same as previously.