jQuery(document).ready(function () {

    var tabs = ['read', 'vote', 'down'];

    for (var i = 0; i < tabs.length; i++) {
        var tab = tabs[i];

        jQuery("#tab-rank-" + tab).mouseover(function(event) {
            for (var j = 0; j < tabs.length; j++) {
                var current = tabs[j];

                if ("tab-rank-" + current == this.id) {
                    jQuery("#tab-rank-" + current).attr('src', '/layouts/conference/images/tab_ranking_' + current + '_on.gif');
                    jQuery("#list-rank-" + current).css('display', 'block');
                }
                else {
                    jQuery("#tab-rank-" + current).attr('src', '/layouts/conference/images/tab_ranking_' + current + '_off.gif');
                    jQuery("#list-rank-" + current).css('display', 'none');
                }
            }
        });
    }
});