Broken Collection Buttons

broken_datatables.js

    var tableContainer = $(".dataTables");
    tableContainer.dataTable({
		    "bPaginate"     : false,
		    "bAutoWidth"    : false,
        "fnPreDrawCallback": function () {
            if (!responsiveHelper) {
                responsiveHelper = new ResponsiveDatatablesHelper(tableContainer, breakpointDefinition);
            }
        },
        "fnRowCallback": function (nRow, aData, iDisplayIndex, iDisplayIndexFull) {
            responsiveHelper.createExpandIcon(nRow);
        },
        "fnDrawCallback": function (oSettings) {
            responsiveHelper.respond();
        },
        "sDom"          : 'T<"clear"><"top"plf<"clear">>rt<"bottom"ipl<"clear">>',
		    "oLanguage"     : {
            "sEmptyTable"   : "There are currently no students registered for this course.",
            "sLengthMenu"   : "Show: _MENU_",
            "sSearch"       : "Filter:",
            "sZeroRecords"  : "There are currently no students registered for this course."
		    },
        "aoColumns"     :[
            {
                "sType"         :"title-string",
                "sWidth"        :"175px"
            },
            { "sWidth"          : "140px"   },
            { "sWidth"          : "75px"    },
            { "sWidth"          : "300px"   },
            { "sWidth"          : "100px"    },
            { "sWidth"          : "70px"    },
            { "sWidth"          : "200px"   },
            { "sWidth"          : "250px"   },
            { "sWidth"          : "175px"   }
        ],
        "aaSorting"     : [ [0,"asc"] ],
        "bAutoWidth"    : false,
        "oTableTools"   : {
            "aButtons"          : [
                {
                    "sExtends"  : "collection",
                    "sButtonText": "Export Student List <span class='caret' />",
                    "sButtonClass": "btn btn-default",
                    "aButtons"  : [
                        "csv",
                        "xls",
                        "pdf",
                        "print"
                    ]
                }
            ],
            "sSwfPath"  : "/codeExtra/datatables/1.9.4/copy_csv_xls_pdf.swf",
        }
		});