window.addEvent('domready',function(e){
    var max = [];
    $$('#box-set .box').each(function(e,i){      
        max.include(e.getSize().y);
    });
    if(max.length != 0){
        var m = max.max()-20;
        $$('#box-set .box').setStyle('height',m);
    }
});