left_button_func = function (e) {
                var i,
                    doc = YSLOW.util.getCurrentTarget(e).ownerDocument,
                    doc = FBL.getContentView(doc);

                    aInputs = doc.getElementsByName('print-type'),
                    print_type = {};

                for (i = 0; i < aInputs.length; i += 1) {
                    if (aInputs[i].checked) {
                        print_type[aInputs[i].value] = 1;
                    }
                }
                doc.ysview.closeDialog(doc);
                doc.ysview.runTool('printableview', {
                    'options': print_type,
                    'yscontext': doc.yslowContext
                });
            }
Display Printable View Dialog
@param {Document} doc Document object of YSlow Chrome window.