var YOOgalleryfx=new Class({initialize:function(container){var fx=[];$(container).getElements('.thumbnail').each(function(el,i){var image=el.getElement('img');image.setStyle('opacity',0.3);fx[i]=image.effect('opacity',{duration:700,wait:false});el.addEvents({mouseenter:function(event){fx[i].setOptions({'duration':300});fx[i].start(0.3,1);},mouseleave:function(event){fx[i].setOptions({'duration':700});fx[i].start(1,0.3);}});});}});