Check box functionality [Resolved]

<script type="text/javascript">

<!--

        function Check_Click(objRef) {

            //Get the Row based on checkbox

            var row = objRef.parentNode.parentNode;



            //Get the reference of GridView

            var GridView = row.parentNode;



            //Get all input elements in Gridview

            var inputList = GridView.getElementsByTagName("input");



            for (var i = 0; i < inputList.length; i++) {

                //The First element is the Header Checkbox

                var headerCheckBox = inputList[0];



                //Based on all or none checkboxes

                //are checked check/uncheck Header Checkbox

                var checked = true;

                if (inputList[i].type == "checkbox" && inputList[i] != headerCheckBox) {

                    if (!inputList[i].checked) {

                        checked = false;

                        break;

                    }

                }

            }

            headerCheckBox.checked = checked;



        }

        function checkAll(objRef) {

            var GridView = objRef.parentNode.parentNode.parentNode;

            var inputList = GridView.getElementsByTagName("input");

            for (var i = 0; i < inputList.length; i++) {

                var row = inputList[i].parentNode.parentNode;

                if (inputList[i].type == "checkbox" && objRef != inputList[i]) {

                    if (objRef.checked) {

                        inputList[i].checked = true;

                    }

                    else {

                        if (row.rowIndex % 2 == 0) {

                            row.style.backgroundColor = "#C2D69B";

                        }

                        else {

                            row.style.backgroundColor = "white";

                        }

                        inputList[i].checked = false;

                    }

                }

            }

        }

//-->

    </script>

 <HeaderTemplate>

                        <asp:CheckBox ID="chkAll" runat="server" onclick="checkAll(this);" AutoPostBack="true"

                            OnCheckedChanged="CheckBox_CheckChanged" />

                    </HeaderTemplate>

                    <ItemTemplate>

                        <asp:CheckBox ID="chk" runat="server" onclick="Check_Click(this)" AutoPostBack="true"

                            OnCheckedChanged="CheckBox_CheckChanged" />

                    </ItemTemplate>

Thanks and Regards
V.SaratChand
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