function Set-XmlNodeValue {
<#
.SYNOPSIS
    Set web.config node. Depend on Set-AlkamiConfigs
#>
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)][Xml]$doc,
        [string]$NodeString,
        [String]$AttributeName,
        [String]$AttributeValue
    )

    $logLead  = (Get-LogLeadName);

    $matchingNodes = $doc.SelectNodes($NodeString)

    if ($null -eq $matchingNodes -or $matchingNodes.Count -eq 0)
    {
        Write-Warning ("$logLead : Could not find node {0} in the supplied XML" -f $NodeString)
    }
    elseif ($matchingNodes.GetAttribute($AttributeName) -eq $AttributeValue)
    {
        Write-Host "$logLead : Node already has correct value '$AttributeValue'"
        $changed = $false
    }
    else
    {
        Write-Output ("$logLead : Updating Node '{0}' With Value '{1}'" -f $NodeString, $AttributeValue)
        $matchingNodes.SetAttribute($AttributeName,$AttributeValue)
        $changed = $true
    }

    Return $changed
}