display variable multiple times

[Charles Menzes <charles@lunarmedia.net>]

how can i force a variable to be displayed multiple times in bash?

example:

back ()
{
	UP="../"
	cd <what goes here? :->
}

I'd like to have the value of $1 be an interger that will display $UP x
number of times dependent upon the value of $1.

so 

	back 2

would issue the command 

	cd ../../

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