$(function() {
    /* Pre load */
    $('.gallery .slide li img').each(function(){
        var i = new Image();
        i.src = this.src.replace('-small', '-big');
    });
    
    var __a = function() {
		var clicked_image = $(this).find('img');
		var big_image = $(this).parents('.gallery:eq(0)').find('.big-image img');
		var big_image_src = $(big_image).attr('src').replace('-big', '-small');
		
		big_image.attr({'src' : clicked_image.attr('src').replace('-small', '-big')});
		clicked_image.attr({'src': big_image_src});
	}

	$('.gallery .slide li').hover(__a, __a);
});