gistfile1.txt

// change main category hover image
$('.maincategories .maincategory .views-row').each(function() {
    $(this).mouseover(function() {
        var tip = $(this).find('.views-field-name a').text();
        $(this).attr('title', tip);
        $(this).find('.views-field-field-hover-image').show();
        $(this).find('.views-field-field-default-image').hide();
    });
    $(this).mouseout(function() {
        $(this).find('.views-field-field-hover-image').hide();
        $(this).find('.views-field-field-default-image').show();
    });
});
active = jQuery('.views-field-field-hover-image a.active');
imgValue = jQuery(active).parent().parent().siblings('.views-field-field-default-image').find('img').attr("src");
newImgValue = newImgValue.replace(/(_0)/g, "-hover$1");
jQuery(active).parent().parent().siblings('.views-field-field-default-image').find('img').attr("src", newImgValue);