Window not using iframe

[Joshua]

I want to open a window within an iframe that because it needs its own print.css. 

I don't know why, but I do not think it is actually using the iframe as it always changes the css in the main window. Am I just doing something wrong?

I am trying to use the following code:

function ShowKendoIFrameWindow(element, data) {

    var title = $(element).attr("WindowCaption");

    var url = $(element).attr("WindowURL");

    $("<div />").kendoWindow({

        iframe: true,

        animation: {

            open: {

                effects: { fadeIn: {} },

                duration: 200,

                show: true

            },

            close: {

                effects: { fadeOut: {} },

                duration: 200,

                hide: true

            }

        },

        content: { type: "POST", url: url, data: data },

        title: title,

        draggable: true,

        modal: true,

        resizable: false,

        scrollable: false,

        refresh: function () { this.center(); }

    }).data("kendoWindow").center().open();

    return false;

}