function ProductSell(o){
	
	this.defaults = {
		selector_filter_text: '#filter_text',
		lookup_product_url: ''	
	};
	
	init();
	
	function init(){
		this.defaults = $.extend(this.defaults, o );
		addBehaviorEnterPressedListener();
	}
	
	
	function addBehaviorEnterPressedListener(){
		alert($(  this.defaults.selector_filter_text ).length);
		$(  this.defaults.selector_filter_text ).keypress(function( event ) {
			  if ( event.which == 13 ) {
				  event.preventDefault();
				  lookupProduct();
			  }
				
		});	
	}
	
	function lookupProduct(){
		var data, url;
		
		url = this.defaults.lookup_product_url;
		data = {
			'query' : 	$(  this.defaults.selector_filter_text ).val()
		};
		
		$.ajax({
			  dataType: "json",
			  url: url,
			  data: data,
			  success: onLookupProductReady
			});
	}
	
	function onLookupProductReady(  data  ){
		alert('ok');
		productChanged(data.product);
	}
	
	
	function productChanged(product){
		clearForm();
		if ( product == null){
			applyProduct();
		}
	}
	
	function clearForm(){
		$('.product-name').html('-');
	}
	
	function applyProduct(product){
		$('.product-name').html(product.name);
	}
		
	
	
	
}