var lastPicture = {src : ''};

    function enlargePic(picture)
    {
        
        if (lastPicture.src != '') 
        {            
            closePic();
            return false;
        }
        
        
        lastPicture = { src: $('picThumb').src };        
        lastPicture.width = $('picThumb').up().getStyle('width');
       
        $('picThumb').up().setStyle({width: '580px', float: 'none'});
        $('picThumb').src = picture;        

    }
    
    function closePic()
    {
        
        if (lastPicture.src == '') 
        {            
            return false;
        }
        
        $('picThumb').src = lastPicture.src;
        $('picThumb').up().setStyle({width: lastPicture.width, float : 'right'});
                
        lastPicture = {src : ''};        
        
    }