function switchImage(target, number)
{
    var mainPicture = document.getElementById('mainImageControl' + number);
    mainPicture.src = target.src.split("?w")[0] + '?w=225&h=150&cl=true'
    
    
    var mainPictureLink = mainPicture.parentNode;
    mainPictureLink.href = target.src.split("?w")[0] + '?w=600'
    
    
    
}