proc selectCheck()
{
	string $namestore[] = `selectedNodes -do`;
		if ($namestore[0] == "|Ship|Thrust" || $namestore[0] == "|Ship")
			{
			newton -e -m -15 "|Ship|Thrust";
			}
		else
			{
			newton -e -m 0 "|Ship|Thrust";
			}
}