function css() {

	/* go on for IE in generall */
	if($.browser.msie){
		
		/* take care IE 6 only */
		if($.browser.version <= 6) {
		
		}
	}
	
	$('.gallery li img').center();
	
}

jQuery.fn.center = function() {
	return this.each(function(){

		var img_tag = $(this);
		var img = new Image();
		img.src = $(this).attr('src');

		img.onload = function() { 
			$(img_tag).css({marginTop: (235 - img_tag.outerHeight() ) /2+'px' });
		}
	});
}	

$(document).ready(css);