Error 'Cannot select a node here' in for-each with global variables

[raks]

Hello,

 

My stylesheet failed to compile for this error: XPTY0020: Cannot select a node here: the context item is an atomic value at this line:

<xsl:when test="$event[substring-before(start/datetime, 'T')=$dateJour]">

Here is all the code of the template: http://pastebin.com/fmPUHGpR. The error is on line 20.

Yesterday, I search on a lot of websites and forums who says to put a global variable outside the for-each. $event is a global variable. I try to put event/start/datetime in a global variable but I still have the error.

 

Could you please help me?