var i = 0;

function rotate() {
    var file = '/portals/7/de_mainfeature_1.jpg';
    var link = '/OurWork/householdindustrialchemicals/BonaUSAMop.aspx';
    
    switch (i % 3) {
        case 1:
            file = '/portals/7/de_mainfeature_2.jpg';
            link = '/OurWork/foodbeverage/FirstJuice.aspx';
            break;
        case 2:
            file = '/portals/7/de_mainfeature_3.jpg';
            link = '/OurWork/personalcarebeauty/Lanza.aspx';
            break;
    }
    
    $('#imgLink').attr('href', link);
    $('#imgFocus').attr('src', file);
    i++;
}