问火狐在加载iFrame时遇到问题

EN

<script type="text/javascript">
    $(document).ready(function() {
        $("#<%= ddlSpecialty.ClientID %>").change(function() { 
            var selected = $("#<%= ddlSpecialty.ClientID %> option:selected");    
            var speciality = selected.text();
            switch (speciality) {
                case 'Cardiology': 
                    window.open('./../PDF/SpecialityGuidelines/SPECIALTY-cardiology.pdf','Specialtyframe');
                    break;
                ; 
                case 'Neurology': 
                    window.open('./../PDF/SpecialityGuidelines/SPECIALTY-Neurology.pdf','Specialtyframe');
                    break; 
                ; 
                case '-- Select Specialty --': 
                    window.open('Specialty.html','Specialtyframe');
                    break; 
                ; 
           }


        });
    });

</script>

<div id="Clean_ContentPlaceHolder1_c2_flyout_content" style="display:none;filter:alpha(opacity=0);-moz-opacity:0;opacity:0;"> 
                <div class="modalcontainer" style="width: 700px;"> 
                    <div class="modalheader"> 
                        <span id="Clean_ContentPlaceHolder1_c2_flyout_Label3" class="modalmsg">Specialty PDF</span> 
                        <img class="modalclose" alt="Close" title="Close" onclick="Clean_ContentPlaceHolder1_c2_flyoutimgPDF.Close();" style="cursor: pointer;" /> 
                    </div> 
                    <div class="modalbody" style="height: 500px;"> 
                        <table width="100%" cellpadding="5" cellspacing="0"> 
                            <tr> 
                                <td> 
                                    <iframe id="Specialtyframe" name="Specialtyframe" frameborder="0" width="650px" height="500px" src="Specialty.html"> 
                                        [Your browser does <em>not</em> support <code>iframe</code>, or has been 
                                        configured not to display inline frames. You can access <a href="../PDF/SpecialityGuidelines/SPECIALTY-Cardiology.pdf">
                                            the document</a> via a link though.]
                                    </iframe> 
                                </td> 
                            </tr> 
                        </table> 
                    </div> 
                </div> 
            </div>
    <div id="Clean_ContentPlaceHolder1_c2_flyout_contentbox"></div>