how javascript auto click div

how javascript auto click div

Html Code
<div id="Evikonu" align="center"><a title="Kendi Çiftliðin"
onclick="ortasayfaac('ev'); " href="javascript:void(0)"><img
id="evikonuimg" width="320" src="ciftikonpic/154ikon.png" style="width:
320px;"></img></a></div>
My code not work
function tikla() {
$("Evikonu").fadeOut("slow");
//Code to refresh the content goes here
//could be a AJAX call
$("Evikonu").fadeIn("slow");
setTimeout("tikla();", 2000);
}
I have tried many javascript code but it did not work. (Mozilla,
Greasemonkey)