R help - Feb 2011 - natural cubic spline and multiple variables

I want to create natural cubic spline on my predictors and fit them to a linear
model.  The DF and Degree of all the splines are the same.  I noticed that I can
setup the lm() formula as y~ns(x1, df=5) + ns(x2, df=5).
My problem is that I have a huge number of predictors (hundreds).  ns however
seems to take only a single set of values for creating the splines.  Is there an
elegant way to handle this?
ThanksVijay 		 	   		  
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