function rollover(img_name, img_src){
        document[img_name].src=img_src;
}



// quick browser tests
var ns4 = (document.layers) ? true : false;
var ie4 = (document.all && !document.getElementById) ? true : false;
var ie5 = (document.all && document.getElementById) ? true : false;
var ns6 = (!document.all && document.getElementById) ? true : false;

function showWineTab(sw,obj) {
        // show/hide the divisions
/**
        if (sw && (ie4 || ie5) ) document.all[obj].style.visibility = 'visible';
        if (!sw && (ie4 || ie5) ) document.all[obj].style.visibility = 'hidden';
        if (sw && ns4) document.layers[obj].visibility = 'visible';
        if (!sw && ns4) document.layers[obj].visibility = 'hidden';
        if (sw && ns6) document.getElementById(obj).style.visibility = 'visible';
        if (!sw && ns6) document.getElementById(obj).style.visibility = 'hidden';
**/

        if (!sw) {
                document.getElementById(obj).style.display = 'none';
        } else {
                document.getElementById(obj).style.display = 'block';
        }
}