String Replace and Sorting in Java Script

<script language="javascript" type="text/javascript">

var HdnChkIds = '';

var ImgPathList = '';

function GetChkValues(chk, ImgPath) {

var ImgPaths = replaceAll(ImgPath, '~', '\\');

if (chk.checked == true) {

ImgPathList = document.getElementById('<%= HdnImgPaths.ClientID %>').value += ImgPaths + '^';

HdnChkIds = document.getElementById('<%= HdnChkBoxValues.ClientID %>').value += parseInt(chk.id) + 1 + ',';

var Ids_array = document.getElementById('<%= HdnChkBoxValues.ClientID %>').value.split(",");

document.getElementById('<%= LblSelectedImgs.ClientID %>').style.display = "block";

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').style.display = "block";

document.getElementById('<%= LblCheckImgs.ClientID %>').style.display = "block";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').style.display = "block";

var Sorting = HdnChkIds.substring(0, HdnChkIds.length - 1).split(',');

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').innerText = Sorting.sort(sortNumber);

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').innerText = Ids_array.length - 1;

    }

    else

{

HdnChkIds = document.getElementById('<%= HdnChkBoxValues.ClientID %>').value.replace(parseInt(chk.id) + 1 + ',', "");

document.getElementById('<%= HdnChkBoxValues.ClientID %>').value = HdnChkIds;

var Ids_array = document.getElementById('<%= HdnChkBoxValues.ClientID %>').value.split(",");

ImgPathList = document.getElementById('<%= HdnImgPaths.ClientID %>').value.replace(ImgPaths + '^', "");

document.getElementById('<%= HdnImgPaths.ClientID %>').value = ImgPathList;

if (Ids_array.length - 1 != 0) {

var Sorting = HdnChkIds.substring(0, HdnChkIds.length - 1).split(',');

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').innerText = Sorting.sort(sortNumber);

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').innerText = Ids_array.length - 1;

     }

else {

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').innerText = "0";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').innerText = "0";

document.getElementById('<%= LblSelectedImgs.ClientID %>').style.display = "none";

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').style.display = "none";

document.getElementById('<%= LblCheckImgs.ClientID %>').style.display = "none";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').style.display = "none";

                }

            }

        }

function checkedAll(checkAllState, cbGroup) {

var Status = 0;

            // Check that the group has more than one element

            if (checkAllState.checked == true) {

                Status = 1;

            }

           

if (cbGroup.length > 0) {

                // Loop through the array

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

                    cbGroup[i].checked = checkAllState.checked;

                }

               

if (Status == 1) {

document.getElementById('<%= HdnImgPaths.ClientID %>').value = document.getElementById('<%= HdnChkAllImgPaths.ClientID %>').value;

HdnChkIds = document.getElementById('<%= HdnChkBoxValues.ClientID %>').value = document.getElementById('<%= HdnChkAllImgIds.ClientID %>').value;

var Sorting = HdnChkIds.substring(0, HdnChkIds.length - 1).split(',');

document.getElementById('<%= LblSelectedImgs.ClientID %>').style.display = "block";

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').style.display = "block";

document.getElementById('<%= LblCheckImgs.ClientID %>').style.display = "block";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').style.display = "block";

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').innerText = Sorting.sort(sortNumber);

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').innerText = document.getElementById('<%= TotalCountImgsShow.ClientID %>').innerText;

                }

               

if (Status == 0) {

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').innerText = "0";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').innerText = "0";

document.getElementById('<%= LblSelectedImgs.ClientID %>').style.display = "none";

document.getElementById('<%= LblSelectedImgsShow.ClientID %>').style.display = "none";

document.getElementById('<%= LblCheckImgs.ClientID %>').style.display = "none";

document.getElementById('<%= LblCheckImgsCountShow.ClientID %>').style.display = "none";

document.getElementById('<%= HdnImgPaths.ClientID %>').value = "";

document.getElementById('<%= HdnChkBoxValues.ClientID %>').value = "";

                }

            }

            else {

                // Single element so not an array

                cbGroup.checked = checkAllState.checked;

            }

        }

function replaceAll(txt, replace, with_this) { return txt.replace(new RegExp(replace, 'g'), with_this); }

        function sortNumber(a, b) { return a - b; }       

   

</script>