Add a custom CSS class to a collection of elements

aras_labs_add_class_to_fields.js

////////////////////// Helpful functions ///////////////////////////////////

    // appends a value to an attribute for all elements in a collection
    // can be used to append class name
    appendAttributeOnAll = function(els, attrName, attrVal)
    {
        for (var i=0; i < els.length; i++)
        {
            var curr = els[i].getAttribute(attrName);
            els[i].setAttribute(attrName, curr + ' ' + attrVal);
        }
    };

////////////////////// Override default styles /////////////////////////////

    // inline label style
    appendAttributeOnAll(labels,'class','my_label');