$(document).ready(function(){
	
	//centre
	$(window).resize(function(){
	 
	    var windowHeight = $(window).height();
		var wrapperHeight = $('#wrapper').outerHeight();
		
		if ( (wrapperHeight + 40) < windowHeight) {
				
			$('#wrapper').css({
				position:'absolute',
				left: ($(window).width() - $('#wrapper').outerWidth())/2,
				top: ($(window).height() - $('#wrapper').outerHeight())/2
			});
		
		} else {
		
			$('#wrapper').css({
				position:'absolute',
				left: ($(window).width() - $('#wrapper').outerWidth())/2,
				top: '0px'
			});
			
		}
	 
	});
	
	// To initially run the function:
	$(window).resize();
	 
	
  
});