Is this possible in XML/XSL?

Is it possible to trim the length of a string in XSL ?

for example,

if I grab the title from an xml file

<xsl:value-of select="title" />

and the title is  "Mother Nature Fan Club: Environmental Directory for 
Education"
how would I trim the string so that the result would be "Mother Nature Fan 
Club ..." ??
dont know if this is possible in XML/XSL, would be great if someone could 
point me in the right direction!
thank you,
J 


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