function showBanners(file) {
	var fileName = file + '.seam';
	var screenWidth = window.screen.width;
	var screenHeigth = window.screen.height;
	var options = 'width='
			+ screen.availWidth
			+ ',height='
			+ screen.availHeight
			+ ',screenX=0,screenY=0,top=0,left=0,scrollbars=yes,status=yes,resizable=yes';
	var popup = window.open(fileName, 'popup', options);
	popup.focus();
	popup.moveTo(0, 0);
}