jscam.swf not working after postback using jQuery WebCam plugin in ASP.Net

I solved this problem duplicating the javascript function and put the second in pageLoad function. I changed the asp.net button to html button and call the Capture function in the onclick, to avoid unnecessary page load.

<script type="text/javascript">
        var pageUrl = '<%=ResolveUrl("~/frmVisitasPorSetor.aspx") %>';
        $(function() {
            jQuery("#webcam").webcam({
                width: 220,
                height: 165,
                mode: "save",
                swffile: '<%=ResolveUrl("~/App_Themes/Webcam_Plugin/jscam.swf") %>',
                debug: function(type, status) {
                    // $('#camStatus').append(type + ": " + status + '<br /><br />');
                },
                onSave: function(data) {
                    $.ajax({
                        type: "POST",
                        url: pageUrl + "/GetCapturedImage",
                        data: '',
                        contentType: "application/json; charset=utf-8",
                        dataType: "json",
                        success: function(r) {
                            $("[id*=imgCapture]").css("visibility", "visible");
                            $("[id*=imgCapture]").attr("src", r.d);
                        },
                        failure: function(response) {
                            alert(response.d);
                        }
                    });
                },
                onCapture: function() {
                    webcam.save(pageUrl);
                }
            });
        });
        function Capture() {
            webcam.capture();
            return false;
        }        
        
        
        function pageLoad(sender, args) {
            if (args.get_isPartialLoad()) {
                var pageUrl = '<%=ResolveUrl("~/frmVisitasPorSetor.aspx") %>';
                $(function() {
                    jQuery("#webcam").webcam({
                        width: 220,
                        height: 165,
                        mode: "save",
                        swffile: '<%=ResolveUrl("~/App_Themes/Webcam_Plugin/jscam.swf") %>',
                        debug: function(type, status) {
                            // $('#camStatus').append(type + ": " + status + '<br /><br />');
                        },
                        onSave: function(data) {
                            $.ajax({
                                type: "POST",
                                url: pageUrl + "/GetCapturedImage",
                                data: '',
                                contentType: "application/json; charset=utf-8",
                                dataType: "json",
                                success: function(r) {
                                    $("[id*=imgCapture]").css("visibility", "visible");
                                    $("[id*=imgCapture]").attr("src", r.d);
                                },
                                failure: function(response) {
                                    alert(response.d);
                                }
                            });
                        },
                        onCapture: function() {
                            webcam.save(pageUrl);
                        }
                    });
                });
                function Capture() {
                    webcam.capture();
                    return false;
                }
            }
        }