(function($) {
	$(document).ready(function() {
	
		/** center vertically **/
		var wh = '';
		var avail_height = '';
		
		function center_content() {
			wh = $(window).height(),
			avail_height = wh - (115 + 50);
		
		
			if ( wh > (525+115+50) ) {		
				$("#content").animate({ 'margin-top' : ((avail_height - 525)/2) + 'px' }, 300);
			}
			else {
				$("#content").css({ 'margin-top' : '20px' });
			}
		}
	
		$(window).resize(function() {
			center_content();
		});
		
		center_content();
			
	}); // end $
	
})(jQuery); // end function($)