// get URL
    var url  = this.location + "";
    var vm_ipid = 19986;

    // check against "known" channels 
    if (url.indexOf('health.msn.com') != -1) {
        vm_ipid=19982;
    }    
    
    // drop the script
    document.write(
        '<SCR'+'IPT language="javascript" type="text/javascript" ' +
        'src="http://health.msn.us.intellitxt.com/intellitxt/front.asp?ipid=' + vm_ipid +
        '"' +
        '>' +
        '</SCR'+'IPT>'
    );