Repeater javascritpt checkitem

 

    < asp:Repeater ID = " RepeaterProductRelations "  runat = " server " >
                                             < HeaderTemplate >
                                                 < table width = " 100% "  cellpadding = " 0 "  cellspacing = " 0 " >
                                                     < tr >
                                                         < td colspan = " 3 "  style = " text-decoration: underline; " >                                               </ td >
                                                     </ tr >
                                             </ HeaderTemplate >
                                             < ItemTemplate >
                                                 < tr >
                                                     < td style = " width: 25px; vertical-align: top; " >
      
                                                         < asp:CheckBox ID = " ckbProductID "  runat = " server "  AutoPostBack = " False "  onclick =<% #  " CheckItemsss(this,' "   +  DataBinder.Eval(Container.DataItem,  " productPrice " )  + " '); " %>
                                                            Visible = ' <%# Page.User.Identity.IsAuthenticated %> '   />
                                                         < asp:HiddenField ID = " hidProdcutID "  runat = " server "  Value = ' <%# Eval("productId") %> '   />
                                                     </ td >
                                                     < td style = " vertical-align: top; " >
                                                         < a href = " prDetails.aspx?pId=<%# DataBinder.Eval(Container.DataItem,  " productId " )%> "
                                                            style = " text-decoration: none; color: #5e5e5e; " >
                                                             <% # DataBinder.Eval(Container.DataItem,  " productNumber " ) %>
                                                         </ a >
                                                     </ td >
                                                     < td >
                                                         < a href = " productDetails.aspx?pId=<%# DataBinder.Eval(Container.DataItem,  " productId " )%> "
                                                            >
                                                             <% # DataBinder.Eval(Container.DataItem,  " productName " ) %>
                                                         </ a >
                                                     </ td >
                                                     < td  >                                                          < asp:Label ID = " LabelProductOutPrince "  runat = " server "  Visible = ' <%# Page.User.Identity.IsAuthenticated %> '
                                                            Text = ' <%# DataBinder.Eval(Container.DataItem, "productOutPrice")%> ' ></ asp:Label >
                                                     </ td >                                          
                                                 </ tr >
                                             </ ItemTemplate >
                                             < FooterTemplate >
                                                 </ table >
                                             </ FooterTemplate >
                                         </ asp:Repeater >

  < div style = " text-align: right " >
                                            total: < asp:Label ID = " lblTotal "  ForeColor = " #9e3026 "  runat = " server "  Visible = " false " ></ asp:Label >
                                             < asp:Button runat = " server "  ID = " btnAddToCart "  Text = " btnAddToCart "  Visible = " false "  OnClick = " btnAddToCart_Click "   />
          </ div >

Code
 1function CheckItem(spanChk, value)
 2    {
 3       //var teaNum = new Number(value);
 4      // var s1 = eval(value);
 5      //  var s2 = parseInt(value);
 6           var svalue = parseFloat(value);
 7       
 8         // alert(s1);
 9          //    alert(s2);
10           //     alert(s3);
11            
12          if (spanChk.checked==true)
13          { 
14          var lblcartvalue = document.getElementById("<%=lblCartTotal.ClientID%>");
15          lblcartvalue.innerText= parseFloat(lblcartvalue.innerText)+ svalue;
16        // alert(lblcartvalue);
17        //   var totalvalue = svalue+ parseFloat
18          }
19          else
20          {
21             var lblcartvalue = document.getElementById("<%=lblCartTotal.ClientID%>");
22             lblcartvalue.innerText = parseFloat(lblcartvalue.innerText) - svalue;
23          }
24//       
25        }
26    </script>