SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">

JavaScript

var xml = '<DataContainer> \
   <Customers> \
      <Customer customerId="7366" customerName="Boardwalk Audi" url="" address="5930 West Plano Pkwy" city="Plano" state="Texas" zipCode="75093" latitude="33.0160690000000000" longitude="-96.8268970000000000"> \
   <Customers> \
<DataContainer>';

var cust_id = $(xml).find("Customer").attr("customerId");
alert(cust_id);