static/ext/src/form/Panel.js
function() {
        var fields = this.form.getFields().items,
            f,
            fLen   = fields.length;

        for (f = 0; f < fLen; f++) {
            fields[f].checkChange();
        }
    }
function() {
        var fields = this.form.getFields().items,
            f,
            fLen   = fields.length;

        for (f = 0; f < fLen; f++) {
            fields[f].checkChange();
        }
    }
Forces each field within the form panel to
{@link Ext.form.field.Field#checkChange check if its value has changed}.