$(document).ready(function(){
	$(document).mousemove(function(e){
		w = $(window).width();
		h = $(window).height();
		$('img').css({
	  		'margin-left': -960+(w/2-e.pageX)*((1920-w)/w),
			'margin-top': -600+(h/2-e.pageY)*((1200-h)/h)
		});
   });
});