evalless !!

gistfile1.txt

formFieldMasks = [
    {
        cssClass: 'money',
        event: 'keyup',
        handler: function(event){
            var regex = /[^\d,]/g;
            var field = event.target;
            field.setValue(field.value.replace(regex, ''));
        }
    },
    {
        cssClass: 'integer',
        event: 'keyup',
        handler: function(event){
            var regex = /[^\d]/g;
            var field = event.target;
            field.setValue(field.value.replace(regex, ''));
        }
    }
];

formFieldMasks.apply = function(){
    $j.each(formFieldMasks, function(index, mask){
        $j('.'+mask.cssClass+' input')[mask.event](mask.handler);
    });
};