fixes #99 (page blanche si nbhits=0)

declare function max.util:markSearchedText($node as node(), $search as xs:string,  $targetId as xs:string ?){

    let $target := if($targetId) then $targetId else 'text'

    return

    let $marked := ft:mark($node//*[@*:id=$target][.//text() contains text {$search}])

    return if($marked)

        then

        copy $c := $node

        modify (

            replace node $c/descendant-or-self::*[@*:id = $target] with ft:mark($c//*[@*:id=$target][.//text() contains text {$search}])

            replace node $c/descendant-or-self::*[@*:id = $target] with $marked

        )

        return  $c

    else $node

};

declare function max.util:addHTMLClass($htmlNode as node(), $targetId as xs:string, $className as xs:string){