https://www.sjp.essex.sch.uk/nocaptcha/javascript/NocaptchaField.js

1var _noCaptchaFields=_noCaptchaFields || [];
2
3function noCaptchaFieldRender() {
4    for(var i=0;i<_noCaptchaFields.length;i++) {
5        var field=document.getElementById('Nocaptcha-'+_noCaptchaFields[i]);
6        var options={
7            'sitekey': field.getAttribute('data-sitekey'),
8            'theme': field.getAttribute('data-theme'),
9            'type': field.getAttribute('data-type'),
10            'size': field.getAttribute('data-size'),
11            'callback': (field.getAttribute('data-callback') ? verifyCallback : undefined )
12        };
13        
14        var widget_id = grecaptcha.render(field, options);
15        field.setAttribute("data-widgetid", widget_id);
16    }
17}