$(function(){
    var navTimers = [];
    $(this).find('.whoStrukturaRow').each( function(index) {
        $(this).mouseover(function() {
            var org_id = $(this).attr('id');
            var id = org_id.substring(4);
            var block = $(this).find('#block-' + id);
            if(block.text() != ''){
                clearTimeout(navTimers[id]);
                navTimers[id] = setTimeout(function() {
                    block.fadeIn()
                    }, 750);
            }
            return false;
        }).mouseout(function(){
            var org_id = $(this).attr('id');
            var id = org_id.substring(4);
            var block = $(this).find('#block-' + id);
            clearTimeout(navTimers[id]);
            navTimers[id] = setTimeout(function() {
                block.fadeOut()
                }, 500);
            return false;
        });
    });
});