function SelectAll()
{   
    window.alert('hello');
}
function DeleteAll()
{
    var del=confirm("Record(s) will be deleted?");
    if (del==true)
    {
        var flgChecked;
        if (CheckBoxIDs != null)
        {
            for (var i = 1; i < CheckBoxIDs.length; i++)
            {
                var cb = document.getElementById(CheckBoxIDs[i]);
                if (cb.checked==true)
                {
                    flgChecked=true;
                    break;
                }
            }
        }
        if (flgChecked==true)
        {
            return true;
        }
        else
        {
            alert("Atleast 1 record must be selected!");
            return false;
        }
    }
    else
    {
        return false;
    }
}

function ChangeCheckBoxState(id, checkState)
{
    var cb = document.getElementById(id);
    if (cb != null)
       cb.checked = checkState;
}

function ChangeAllCheckBoxStates(checkState)
{
    // Toggles through all of the checkboxes defined in the CheckBoxIDs array
    // and updates their value to the checkState input parameter
    if (CheckBoxIDs != null)
    {
        for (var i = 0; i < CheckBoxIDs.length; i++)
           ChangeCheckBoxState(CheckBoxIDs[i], checkState);
    }
}

function ChangeHeaderAsNeeded()
{
    // Whenever a checkbox in the GridView is toggled, we need to
    // check the Header checkbox if ALL of the GridView checkboxes are
    // checked, and uncheck it otherwise
    if (CheckBoxIDs != null)
    {
        // check to see if all other checkboxes are checked
        for (var i = 1; i < CheckBoxIDs.length; i++)
        {
            var cb = document.getElementById(CheckBoxIDs[i]);
            if (!cb.checked)
            {
                // Whoops, there is an unchecked checkbox, make sure
                // that the header checkbox is unchecked
                ChangeCheckBoxState(CheckBoxIDs[0], false);
                return;
            }
        }
        
        // If we reach here, ALL GridView checkboxes are checked
        ChangeCheckBoxState(CheckBoxIDs[0], true);
    }
}

function showReq(obj)
{
    if (obj.value=="")
    {
        obj.value=document.getElementById(obj.id).getAttribute('reqtext');
        obj.className="textboxreq";
    } 
}
function showClear(obj)
{
    if (obj.value==document.getElementById(obj.id).getAttribute('reqtext'))
    {
        obj.value="";
        obj.className="textbox";
    }
}