$(document).ready(function(){
	// vertical centering content
	// height of the parent container must be fixed
	$('div.sponsor-logo img').each(function(){
		var thish = $(this).height();
		var parenth = 120;
		var topmargin = (parenth - thish) / 2;
		$(this).css('padding-top', topmargin);
	});	
});