function loadAnyway() {
	document.getElementById('loader').style.display = 'none';
	document.getElementById('large-img').style.display = 'block';
}

Conversely, if you are using jQuery, you may use this:

function loadAnyway() {
	$('#loader').hide();
	$('#large-img').show()';
}

Now, using the timeout of your choice, place this line of code in your JavaScript:

setTimeout( "loadAnyway()", timeout );

Timeout must be an integer that represents the time (in milliseconds) to wait before forcibly removing the load icon and trying to display the actual image.

If you are still having trouble, feel free to leave another comment.