function swap(object,file)	{
    object.src='img/but/' + file + '.gif';
}

function obmen(object,file)	{
    object.src='img/ '+ file + '.gif';
}

function swithimg (img) {
  
    var object = document.getElementById('bimage');
    object.src='/image.php?file=' + img + '&width=491';
}