$(document).ready(function() {
	var baseh = $('.bg').height();
	var basew = $('.bg').width();
	function firstresize(){
		
		 baseh = $('.bg').height();
	 	 basew = $('.bg').width();
		$('.bg').each(function() {
				
       		
				var stawid=$(window).width();
				var stahei=$(window).height();
				
				var cpX=stawid/2;
				var cpY=stahei/2;
				
			
				
				$(this).css("width", stawid); // Set new width
				
				var rapport = basew/stawid;
				
				var newhei=baseh/rapport;
				$(this).css("height", newhei);  // Scale height based on ratio
				
				
				var diff=(newhei-stahei)/2;
			
			/*	$(this).css("position","relative");
				$(this).css("top",-diff);
				$(this).css("left","0px");*/
					
				if (newhei<stahei) {
					
					$(this).css("height", stahei);
					rapport = baseh/stahei;
					var newwid=basew/rapport;
					$(this).css("width", newwid);
				
				/*	$(this).css("position","relative");
					$(this).css("left","0px");
					$(this).css("top","0px");*/
					
				}
				 
   			 });
		
		};
		
		$(window).resize(function(){firstresize();});
		
		firstresize()
});