Add docs for to_json and from_json

doc/function/from_json.txt

@@ -0,0 +1,19 @@
+Function: from_json
+
+--Usage--
+> from_json(some_JSON_string)
+
+Convert a JSON string to a [[type:list]], a [[type:map]], a [[type:card]], a [[type:keyword]], a [[type:pack_type]] or a [[type:set]].
+
+To see the required syntax, use an output of the [[fun:to_json]] function.
+
+--Parameters--
+! Parameter	Type				Description
+| @input@	[[type:string]]		JSON string to convert to an MSE script value.
+| @set@		[[type:set]]		The active set. This can be omited since "set" is a predefined variable.
+
+--Examples--
+> add_card_to_set(from_json("\{\"mse_object_type\":\"card\", \"data\":\{\"name\":\"Ajani\", \"rarity\":\"mythic rare\"\}\}"))
+
+--See also--
+| [[fun:to_json]]		Convert an MSE script value to JSON text.

doc/function/get_card_stylesheet.txt

@@ -10,7 +10,7 @@ This is for use in exporter scripts. In card scripts, use the "stylesheet" prede
 --Parameters--
 ! Parameter	Type					Description
 | @input@	[[type:card]]		The card you want to retrieve the stylesheet from.
-| @set@		[[type:set]]		The set the card belongs to. In an exporter script, this can be ommited since "set" is a predefined variable.
+| @set@		[[type:set]]		The set the card belongs to. In an exporter script, this can be omited since "set" is a predefined variable.
 
 --Examples--
 > # Retrieve the card regions from the card's stylesheet

doc/function/get_card_styling.txt

@@ -10,7 +10,7 @@ This is for use in exporter scripts. In card scripts, use the "styling" predefin
 --Parameters--
 ! Parameter	Type					Description
 | @input@	[[type:card]]		The card you want to retrieve the styling data from.
-| @set@		[[type:set]]		The set the card belongs to. In an exporter script, this can be ommited since "set" is a predefined variable.
+| @set@		[[type:set]]		The set the card belongs to. In an exporter script, this can be omited since "set" is a predefined variable.
 
 --Examples--
 > # Retrieve the value "is foil" from the card's styling options

doc/function/index.txt

@@ -11,6 +11,8 @@ These functions are built into the program, other [[type:function]]s can be defi
 | [[fun:to_color]]		Convert any value to a [[type:color]]
 | [[fun:to_image]]		Convert any value to an [[type:image]]
 | [[fun:to_date]]		Convert any value to a [[type:date]]
+| [[fun:to_json]]		Convert any value to JSON text.
+| [[fun:from_json]]		Convert JSON text to an MSE script value.
 | [[fun:make_map]]		Create a [[type:map]] from two [[type:list]]s
 | [[fun:type_name]]		Get the type of a value
 	

doc/function/to_json.txt

@@ -0,0 +1,18 @@
+Function: to_json
+
+--Usage--
+> to_json(some_script_value)
+
+Convert a [[type:list]], a [[type:map]], a [[type:card]], a [[type:keyword]], a [[type:pack_type]] or a [[type:set]] to a JSON string.
+
+
+--Parameters--
+! Parameter	Type				Description
+| @input@	some_script_value		MSE script value to convert to a JSON string.
+| @set@		[[type:set]]		The active set. This can be omited since "set" is a predefined variable.
+
+--Examples--
+> to_json(card)
+
+--See also--
+| [[fun:from_json]]		Convert JSON text to an MSE script value.

tools/website/drupal/mse-drupal-modules/highlight.inc

@@ -13,6 +13,8 @@ $built_in_functions = array(
 	'to_color'		=>'',
 	'to_image'		=>'',
 	'to_date'		=>'',
+	'to_json'		=>'',
+	'from_json'		=>'',
 	'make_map'		=>'',
 	// numbers
 	'abs'			=>'',