// sticky footer plugin
(function($)
{
	var footer;

	$.fn.extend(
	{
		stickyFooter: function(options)
		{
			footer = this;
			
			positionFooter();

			$(window)
			.resize(positionFooter);
			
			function positionFooter()
			{
				var docHeight = $(document.body).height() - $("#sticky-footer-push").height();
				
				if (docHeight < $(window).height())
				{
					var diff = $(window).height() - docHeight;
					
					if (!$("#sticky-footer-push").length > 0)
					{
						$(footer).before('<div id="sticky-footer-push"></div>');
					}
					
					$("#sticky-footer-push").height(diff);
				}
				else
				{
					$("#sticky-footer-push").remove();
				}
			}
		}
	});
})(jQuery);