Function Increment-PowerGuiXmlVersion
	{
	Param(
	$PersonalXmlFile = (Join-Path $env:appdata "Quest Software\PowerGUI\config.xml"),
	$CentralXmlFile = 'P:\Centrally Managed Files\config.xml',
	$XPath = "//container[@name='version']",
	$IncrementMajor = $false,
	$IncrementMinor = $true
	)
 
	# Load central xml file (for backup and reading the current version number)
	$CentralConfig = New-Object System.Xml.XmlDocument
	$CentralConfig.Load($CentralXmlFile)
 
	# Select the correct node
	$NodeToRead = $CentralConfig.SelectSingleNode($XPath)
 
	# Read the current version
	$CurrentVersion = $NodeToRead.Value
	$MajorVersion = [Int]($CurrentVersion.Split(".")[0])
	$MinorVersion = [Int]($CurrentVersion.Split(".")[1])
	Write-Host "Current Version of Central Xml File: $CurrentVersion"
 
	# Backup central xml file
	$BackupFileName = $CentralXmlFile.Replace(".xml", ("_{0}.xml" -f $CurrentVersion))
	$CentralConfig.Save($BackupFileName)
 
	# Load personal xml file
	$PersonalConfig = New-Object System.Xml.XmlDocument
	$PersonalConfig.Load($PersonalXmlFile)
 
	# Select the correct node
	$NodeToBeChanged = $PersonalConfig.SelectSingleNode($XPath)
 
	# Increment the version
	If ($IncrementMinor){$MinorVersion++}
	If ($IncrementMajor){$MajorVersion++; $MinorVersion = 0}
	$newVersion = [string]::Concat($MajorVersion,".",$MinorVersion)
	Write-Host "New Version of Central Xml File: $newVersion"
 
	# Write the new version
	$NodeToBeChanged.Value = $newVersion
 
	# Save the personal xml file as the new central xml file
	$PersonalConfig.Save($CentralXmlFile)	
	}