dbcc on one or several databases

Hello,

How can I modify this script for executing dbcc on one or several databases?

function main()
{
      if ($verbose) {$VerbosePreference = "Continue"}
      if ($debug) {$DebugPreference = "Continue"}
      dbcc_checkdb $I $D
}

function dbcc_checkdb ($I, $D)
{
      $cn = new-object system.data.SqlClient.SqlConnection( `
            "Data Source=$I;Integrated Security=SSPI;Initial Catalog=$D");
      $ds = new-object System.Data.DataSet "dsCheckDB"
      $query = "DBCC CHECKDB($D) WITH TABLERESULTS"
      $da = new-object "System.Data.SqlClient.SqlDataAdapter" ($query, $cn)
      $da.Fill($ds)

      $dtCheckDB = new-object "System.Data.DataTable" "dsCheckDB"
      $dtCheckDB = $ds.Tables[0]
      $dtCheckDB | Format-Table -autosize `
      -property Error, Level, State, MessageText, `
                                    RepairLevel, Status, DbId, ObjectId, `
                                    IndexId, PartitionId, AllocUnitId, File, `
                                    Page, Slot, RefFile, RefPage, RefSlot, Allocation
}

Thanks

bibi