function ad_left() {};

ad_left = new ad_left();
number = 0;

ad_left[number++] = "<script type='text/javascript' language='JavaScript1.2' src='http://uk.babelfish.yahoo.com/free_trans_service/babelfish2.js?from_lang=en&region='></script>"

increment = Math.floor(Math.random() * number);

document.write(ad_left[increment]);