setTimeout doesn't work and the page reloads constantly?

setTimeout doesn't work and the page reloads constantly?

I am using this javascript code and it should reload the page every 8
seconds but it will reload the page constantly!!
<script type="text/javascript">
$(document).ready(function(){
setTimeout(function () {
doWork();
window.location.reload();
}, 8000);
function doWork() {
$('#submit').trigger('click');
}
});
</script>
what is the issue here?