// myclass.js

if (typeof(km_scripts) == 'undefined') var km_scripts = new Object();
km_myclass_import('http://www.vmware.com/files/templates/inc/tracking.js');

km_myclass_import('http://www.vmware.com/files/templates/inc/hbx.js');

km_myclass_import('http://www.vmware.com/files/elqNow/elqCfg.js');

km_myclass_import('http://www.vmware.com/files/elqNow/elqImg.js');



function km_myclass_import(jsFile) {
if (km_scripts[jsFile] != null) return;
var scriptElt = document.createElement('script');
scriptElt.type = 'text/javascript';
scriptElt.src = jsFile;
document.getElementsByTagName('head')[0].appendChild(scriptElt);
km_scripts[jsFile] = jsFile; // or whatever value your prefer

}