text: module.exports = function (ads) {
  	
  	function getIcon (category) {
  		var icon = '';
  		switch (category) {
  			case 'cars' :
  			icon = '../img/car.png';
  			break;
  
  			case  'phones' :
  			icon =  '../img/phone.png';
  			break;
  
  			case  'services' :
  			icon = '../img/service.png';
  		}
  		return icon;
  	}
  
  	return ads.map(function(ad) {
  		ad.icon = getIcon(ad.category);
  		return ad;
  	});
  }