Perfect Verticaly and Horizontaly aligment of Elements

gistfile1.js

<script type="text/javascript">
(function ($) {
$.fn.vAlign = function() {
	return this.each(function(i){
	var h = $(this).height();
	var oh = $(this).parent().height();
	var mt = (oh - h) / 2;	
	$(this).css("margin-top", mt + "px");
	});	
};
})(jQuery);
 
(function ($) {
$.fn.hAlign = function() {
	return this.each(function(i){
	var w = $(this).width();
	var oh = $(this).parent().width();
	var mt = (oh - h) / 2;	
	$(this).css("margin-left", mt + "px");
	});
};
})(jQuery);
 
$(document).ready(function() {
	$(".teaser-item .pos-media.media-left a img").vAlign();
	$(".teaser-item .pos-media.media-left a img").hAlign();
});
</script>