var amazon_impression_url   = "www.assoc-amazon.co.uk";

var amazon_impression_campaign = '2506';
var amazon_impression_ccmids =  {
    'as2'  : '9310',
    '-as2' : '9490',
    'am2'  : '9306',
    '-am2' : '9490',
    'ur2'  : '9490'
    };

document.write("<scr"+"ipt src='http://" 
    + amazon_impression_url 
    + "/s/impression-counter-common.js' type='text/javascr"+"ipt'></scr"+"ipt>");