Hi,
can you try this?
<script type="text/javascript" language="javascript">
function GetTextValue() {
var checkList = document.getElementById('CheckBoxList1');
var checkBoxList = checkList.getElementsByTagName("input");
var arrayOfCheckBoxLabels = checkBoxList.getElementsByTagName("label");
var checkBoxSelectedItems = new Array();
var values = "";
var i = 0;
for (i = 0; i < checkBoxList.length; i++) {
if (checkBoxList[i].checked) {
checkBoxSelectedItems.push(checkBoxList[i].value);
values = values + arrayOfCheckBoxLabels[i].innerText + ",";
}
}
var category = values;
}