src/main/java/org/efaps/ui/wicket/behaviors/dojo/LazyIframeBehavior.java
@Override
    public void renderHead(final Component _component,
                           final IHeaderResponse _response)
    {
        super.renderHead(_component, _response);
        final StringBuilder js = new StringBuilder()
            .append("ready(function() {")
            .append("registry.byId(\"").append(_component.getMarkupId())
            .append("\").set(\"content\", domConstruct.create(\"iframe\", {");

        if (this.frameMarkupId != null) {
            js.append("\"id\": \"").append(this.frameMarkupId).append("\",");
        }

        js.append("\"src\": \"").append(_component.urlForListener(new PageParameters()))
            .append("\",\"style\": \"border: 0; width: 100%; height: 99%\", \"nodeId\": \"jan\"")
            .append("}));")
            .append("});");
        _response.render(JavaScriptHeaderItem.forScript(DojoWrapper.require(js, DojoClasses.ready,
                        DojoClasses.registry, DojoClasses.domConstruct), _component.getMarkupId() + "-Script"));
    }
@Override
    public void renderHead(final Component _component,
                           final IHeaderResponse _response)
    {
        super.renderHead(_component, _response);
        final StringBuilder js = new StringBuilder()
            .append("ready(function() {")
            .append("registry.byId(\"").append(_component.getMarkupId())
            .append("\").set(\"content\", domConstruct.create(\"iframe\", {");

        if (this.frameMarkupId != null) {
            js.append("\"id\": \"").append(this.frameMarkupId).append("\",");
        }

        js.append("\"src\": \"").append(_component.urlForListener(new PageParameters()))
            .append("\",\"style\": \"border: 0; width: 100%; height: 99%\", \"nodeId\": \"jan\"")
            .append("}));")
            .append("});");
        _response.render(JavaScriptHeaderItem.forScript(DojoWrapper.require(js, DojoClasses.ready,
                        DojoClasses.registry, DojoClasses.domConstruct), _component.getMarkupId() + "-Script"));
    }
Render the links for the head.

@param _component component the header will be rendered for
@param _response resonse to add