SharePoint: Function to Create Document Library

Function fCreateDoclib($SPUrl,$doclib,$Description)
{
	$rootweb = Get-SPWeb("$SPUrl")
	$DLtemplate = [Microsoft.SharePoint.SPListTemplateType]::DocumentLibrary
	$List = $rootweb.Lists.TryGetList($DocLib)
	if($list -ne $null)
	{
		write-host "$SPUrl/$DocLib already exists"
	}
	else
	{
		write-host -f green "Create Document Library $SPUrl/$DocLib"
		$rootweb.Lists.Add($DocLib,$Description,$DLtemplate) | out-null
	}
}