$(function(){  
  $('.feature_box').showFeatureText();    
})

$.fn.showFeatureText = function() {
  return this.each(function(){    
    var box = $(this);
    var text = $('p',this);    

    text.css({ position: 'absolute', bottom: '0px' }).hide();

    box.hover(function(){
      text.slideDown("fast");
    },function(){
      text.slideUp("fast");
    });

  });
}