How to embed a dynamic link in the email notification via mail script

[nameisnani]

Hi Team ,

Need help with the mail script to redirect the user to the survey link . 

https://<instance-name>.service-now.com/esc?id=take_survey&type_id=d241f419471b21100a2e3e58c26d4338

The link should be dynamic .

(function runMailScript( /* GlideRecord */ current, /* TemplatePrinter */ template,
    /* Optional EmailOutbound */
    email, /* Optional GlideRecord */ email_action,
    /* Optional GlideRecord */
    event) {


    gs.log("current " + current.number, 'sys');

    var surv = new GlideRecord('asmt_assessment_instance');
    surv.addNotNullQuery('trigger_id');
    surv.addQuery('trigger_id', current.sys_id);
    surv.query();
    surv.next();
    gs.log("Incident from survey " + surv.number, 'sys');

    var params = current.number + "," + surv.number;
    var subject = "survey:" + surv.number + " " + " " + "incident:" + current.number + " ";
    //var mail = gs.getProperty("instance_name") + "@service-now.com";
    //var mail = "testgpt0070@gmail.com";
    email.setSubject(subject);
    template.print('<br/>In order to improve the quality of our service, we invite you to evaluate the overall processing of your file by clicking on one of the following emoticons:<br/><br/>');

    template.print('<img src="verymad.png" width="51" height="52"/></a>');

    template.print('<img src="mad.png" width="50" height="53"/></a>');

    template.print('<img src="neutral.png" width="49" height="53"/></a>');

    template.print('<img src="happy.png" width="50" height="53"/></a>');

    template.print('<img src="veryhappy.png" width="50" height="53"/></a>')

Thanks in Advance 

@Chuck Tomasi 

[nameisnani]

Done Thank you so much for your quick response