How to validate the selected value of checkboxlist using javascript

[christyjs]

Hai i want to display the selected values of checkboxlist in an alert in javascript

i'm using following code, but it doesn't work.. please help me...

function ChkSelectvalue(ckBoxItems) 
{
   try 
 { 
       var chkList = ckBoxItems.getElementsByTagName('input');
       var listOfSpans = ckBoxItems.getElementsByTagName('span');
       var chkList1 = chkList.length;
       for (var j = 0; j < chkList1; j++) {
        if(chkList[j].checked==true)
         {
           alert(listOfSpans[j].innerHTML);
         }
       } 
   } catch (e) { };
}

<asp:CheckBoxList CssClass="ddlFont" ID="chkProvider" Width="325px" runat="server"
                               onclick="ChkSelectvalue(this);">
                           </asp:CheckBoxList>

Thanks in advance

[Dormilich]

replace line 14 with

} catch (e) { console.log(e.message); }

and then check the console output.

[christyjs]

Thank you.. But its too didn't work wit me:(

[Dormilich]

it's not supposed to make it work, it's supposed to tell you, when an error occurs, so you can fix it.