window.addEvent('domready',function()
{$$('[class^=p]').addEvent('click',function(e)
{e=new Event(e);e.stop();});$$('[class^=p]').addEvent('mouseover',function(el)
{var parent=this.getParent();parent.addClass('petit');var img=this.getFirst('img').get('src').replace(/p.jpg/,'.jpg');parent.getFirst('.grande').getFirst('img').set('src',img);});$$('[class^=p]').addEvent('mouseout',function(el)
{var parent=this.getParent();parent.removeClass('petit');});});