Xsl syntax - need to pull in a value from a form

xsl:text/Development/DraftProcessing.nsf/AllDrafts/</xsl:text>

In this xsl style sheet (page), I need to pull in the folder (Development) from the actual form so that it’s not hard-coded. What would be the syntax for this if (let’s say) the field on the form is called “Folder”?

I appreciate anyone’s help in advance.