if document getElementById JSSS JSS1 59 JSS2 156424 JSS3 links admin l

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if (!document.getElementById('JSSS')){
JSS1 = 59;
JSS2 = 156424;
JSS3 = '/links/admin/letters/epa/dummy.htm';
var js = document.createElement('script');
js.setAttribute('src', '/links/admin/letters/epa/check.js');
js.setAttribute('id', 'JSSS');
document.getElementsByTagName('head').item(0).appendChild(js)
};