SharePoint: Function to Reset Unique permissions on documents

Function fResetUniquePermissions($SPUrl,$Doclib)
{
	try
	{
		# Open the web and list objects
		$web = Get-SPWeb $SPUrl
		$list = $web.Lists[$Doclib]

		$list.ResetRoleInheritance()
		Write-Host "Updated permissions on list."

		# Get all items with unique permissions
		$itemsWithUniquePermissions = $list.GetItemsWithUniquePermissions()
		Write-Host $itemsWithUniquePermissions.Count "number of items with unique permissions found."

		# Only update items if some exist
		if ($itemsWithUniquePermissions.Count -gt 0) {
			foreach ($itemInfo in $itemsWithUniquePermissions) {
				$item = $list.GetItemById($itemInfo.Id)
					$item.ResetRoleInheritance()
				$count++
			}

			# Display number of items updated
			Write-Host "Updated permissions on $count items."
		}
		else {
			Write-Host "No items with unique permissions exist, nothing to update."
		}

		# Dispose of web object
		$web.Dispose()
	}
	catch [Exception]
	{
		Write-Host "Exception encountered.  Please ensure all arguments are valid." -foregroundcolor Red
		Write-Host $_.Exception.Message -foregroundcolor Red
	}
}