function showTilde(tab) {
   // hide all
    document.getElementById('tabHome').style.visibility = 'hidden';
    document.getElementById('tabAbout').style.visibility = 'hidden';
    document.getElementById('tabOurAntiques').style.visibility = 'hidden';
    document.getElementById('tabServices').style.visibility = 'hidden';
    document.getElementById('tabContact').style.visibility = 'hidden';
    document.getElementById('tabSiteMap').style.visibility = 'hidden';
 
    //document.getElementById(tab).style.visibility = 'visible';
}

function showImage(antique, thumb) {
    var img = new Image();
    img.src = "img/antique" + antique + "/large" + thumb + ".jpg?" + Date;
    
    if (img.complete == true || img.ready == true) {
    
      var imgHeight = img.height;
    
      document.getElementById('detailImage').src = "img/antique" + antique + "/large" + thumb + ".jpg?" + Date;
      document.getElementById('detailImage').style.height = imgHeight + 'px';
    }
    else {
      setTimeout("showImage(" + antique + "," + thumb + ")", 1000);
    }
}