/* setting height=100% does nothing in Mozilla/Firefox anymore */
var is_mz = (navigator.userAgent.toLowerCase().indexOf("msie") == -1);
if (is_mz) {
	var size = Math.round((window.innerHeight - 668) / 2);
	document.write('<span style="display:block;height:' + size + 'px;">&nbsp;</span>');
}