No copia formulario dinamico

[alexg88]

Tienes que asignar la función al evento click del botón:

Código Javascript:

var counter = 0;
 
function moreFields() {
    counter++;
    var newFields = document.getElementById('readroot').cloneNode(true);
    newFields.id = '';
    newFields.style.display = 'block';
    var newField = newFields.childNodes;
    for (var i=0;i<newField.length;i++) {
        var theName = newField[i].name
        if (theName)
            newField[i].name = theName + counter;
    }
    var insertHere = document.getElementById('writeroot');
    insertHere.parentNode.insertBefore(newFields,insertHere);
}
 
window.onload = function()
{
 document.getElementById("moreFields").onclick = moreFields;    
    moreFields();
};