(function($) {
	$.fn.center = function(loaded) {
	    var obj = this;
	    body_width = parseInt($(window).width());
	    body_height = parseInt($(window).height());
	    block_width = parseInt(obj.width());
	    block_height = parseInt(obj.height());
	    
	    left_position = parseInt((body_width/2) - (block_width/2)  + $(window).scrollLeft());
	    if (body_width < block_width) { left_position = 0 };
	    top_position = parseInt((body_height/2) - (block_height/2) + $(window).scrollTop());
	    if (body_height < block_height) { top_position = 0 };
	    
	    if(!loaded) {
	        
	        obj.css({'position': 'absolute'});
	        obj.css({'left': left_position, 'top': top_position});
	        $(window).bind('resize', function() { 
	            obj.center(!loaded);
	        });
	        $(window).bind('scroll', function() { 
	            obj.center(!loaded);
	        });
	        
	    } else {
	        obj.stop();
	        obj.css({'position': 'absolute'});
	        obj.animate({'left': left_position, 'top': top_position}, 200, 'linear');
	    }
	}
})(jQuery);