window.addEvent('domready', function() {

    var thumbs = $$('.thumb');
    for(i=0;i<thumbs.length;i++)
    {



        thumbs[i].addEvent('click',function(event) {


                       if (window.ie)
                           var src =  event.srcElement.src;
                       else
                           var src =  event.target.src;

                       var small_image = src;
                       var large_image = small_image.replace('small','large'); 

                       var fadeout = new Fx.Style('main-image', 'opacity', { 
                                         onComplete:function()
                                         { 
                                            var bgc = new Fx.Style('main-image-container','background').set( $('main-image').src );
                                           $('main-image').src=large_image; 
                                            var fadein = new Fx.Style('main-image', 'opacity');
                                           fadein.start(0,1);

                                         } 
                                         }
                       );

                        try {
                       fadeout.start(1,0);
                        } catch(e) { 
                              alert('fade error'); 
                        }

        }
       );
    }


}
);