NanoUI updates.

* Simplified the code used in ui_interact procs and updated all current uses.
* Removed ununused jsviews JavaScript code (replaced it with vanilla jsrender).
* Added a message to the UI which shows if JavaScript is disabled (people with JavaScript disabled previously got blank UIs).

code/modules/nano/nanomanager.dm

@@ -14,6 +14,29 @@
 /datum/nanomanager/New()
 	return
 
+ /**
+  * Get an open /nanoui ui for the current user, src_object and ui_key and try to update it with data
+  *
+  * @param user /mob The mob who opened/owns the ui
+  * @param src_object /obj|/mob The obj or mob which the ui belongs to
+  * @param ui_key string A string key used for the ui
+  * @param ui /datum/nanoui An existing instance of the ui (can be null)
+  * @param data list The data to be passed to the ui, if it exists
+  *
+  * @return /nanoui Returns the found ui, for null if none exists
+  */
+/datum/nanomanager/proc/try_update_ui(var/mob/user, src_object, ui_key, var/datum/nanoui/ui, data)
+	if (!ui) // no ui has been passed, so we'll search for one
+	{
+		ui = get_open_ui(user, src, ui_key)
+	}
+	if (ui)		
+		// The UI is already open so push the data to it
+		ui.push_data(data)
+		return ui
+		
+	return null
+
  /**
   * Get an open /nanoui ui for the current user, src_object and ui_key
   *
@@ -21,7 +44,7 @@
   * @param src_object /obj|/mob The obj or mob which the ui belongs to
   * @param ui_key string A string key used for the ui
   *
-  * @return /nanoui Returns the found ui, for null if none exists
+  * @return /nanoui Returns the found ui, or null if none exists
   */
 /datum/nanomanager/proc/get_open_ui(var/mob/user, src_object, ui_key)
 	var/src_object_key = "\ref[src_object]"

code/modules/nano/nanoui.dm

@@ -308,6 +308,7 @@ nanoui is used to open and update nano browser uis
 		<div id='uiWrapper'>
 			[title ? "<div id='uiTitleWrapper'><div id='uiStatusIcon' class='icon24 uiStatusGood'></div><div id='uiTitle'>[title]</div><div id='uiTitleFluff'></div></div>" : ""]
 			<div id='uiContent'>
+				<noscript><div id='uiNoJavaScript'>Your browser does not have JavaScript enabled. Please enable JavaScript restart SS13.</div></noscript>
 	"}
 
  /**

code/modules/reagents/Chemistry-Machinery.dm

@@ -10,7 +10,7 @@
 	icon_state = "dispenser"
 	use_power = 0
 	idle_power_usage = 40
-	var/ui_name = "Chem Dispenser 5000"
+	var/ui_title = "Chem Dispenser 5000"
 	var/energy = 100
 	var/max_energy = 100
 	var/amount = 30
@@ -104,7 +104,7 @@
   *
   * @return nothing
   */
-/obj/machinery/chem_dispenser/ui_interact(mob/user, ui_key = "main")
+/obj/machinery/chem_dispenser/ui_interact(mob/user, ui_key = "main", var/datum/nanoui/ui = null)
 	if(stat & (BROKEN|NOPOWER)) return
 	if(user.stat || user.restrained()) return
 
@@ -140,18 +140,17 @@
 		if(temp)
 			chemicals.Add(list(list("title" = temp.name, "id" = temp.id, "commands" = list("dispense" = temp.id)))) // list in a list because Byond merges the first list...
 	data["chemicals"] = chemicals
-
-	var/datum/nanoui/ui = nanomanager.get_open_ui(user, src, ui_key)
+	
+	// update the ui if it exists, returns null if no ui is passed/found
+	ui = nanomanager.try_update_ui(user, src, ui_key, ui, data)	
 	if (!ui)
-		// the ui does not exist, so we'll create a new one
-		ui = new(user, src, ui_key, "chem_dispenser.tmpl", ui_name, 370, 605)
-		// When the UI is first opened this is the data it will use
-		ui.set_initial_data(data)
+		// the ui does not exist, so we'll create a new() one
+        // for a list of parameters and their descriptions see the code docs in \code\modules\nano\nanoui.dm
+		ui = new(user, src, ui_key, "chem_dispenser.tmpl", ui_title, 370, 605)
+		// when the ui is first opened this is the data it will use
+		ui.set_initial_data(data)		
+		// open the new ui window
 		ui.open()
-	else
-		// The UI is already open so push the new data to it
-		ui.push_data(data)
-		return
 
 /obj/machinery/chem_dispenser/Topic(href, href_list)
 	if(stat & (NOPOWER|BROKEN))
@@ -225,7 +224,7 @@
 	icon_state = "soda_dispenser"
 	name = "soda fountain"
 	desc = "A drink fabricating machine, capable of producing many sugary drinks with just one touch."
-	ui_name = "Soda Dispens-o-matic"
+	ui_title = "Soda Dispens-o-matic"
 	energy = 100
 	accept_glass = 1
 	max_energy = 100
@@ -248,7 +247,7 @@
 /obj/machinery/chem_dispenser/beer
 	icon_state = "booze_dispenser"
 	name = "booze dispenser"
-	ui_name = "Booze Portal 9001"
+	ui_title = "Booze Portal 9001"
 	energy = 100
 	accept_glass = 1
 	max_energy = 100

code/modules/research/xenoarchaeology/machinery/geosample_scanner.dm

@@ -114,7 +114,7 @@
 	if(total_purity && fresh_coolant)
 		coolant_purity = total_purity / fresh_coolant
 
-/obj/machinery/radiocarbon_spectrometer/ui_interact(mob/user, ui_key = "radio_spectro")
+/obj/machinery/radiocarbon_spectrometer/ui_interact(mob/user, ui_key = "main", var/datum/nanoui/ui = null)
 
 	if(user.stat)
 		return
@@ -144,20 +144,19 @@
 	data["radiation"] = round(radiation)
 	data["t_left_radspike"] = round(t_left_radspike)
 	data["rad_shield_on"] = rad_shield
-
-	var/datum/nanoui/ui = nanomanager.get_open_ui(user, src, ui_key)
+	
+	// update the ui if it exists, returns null if no ui is passed/found
+	ui = nanomanager.try_update_ui(user, src, ui_key, ui, data)	
 	if (!ui)
-		// the ui does not exist, so we'll create a new one
+		// the ui does not exist, so we'll create a new() one
+        // for a list of parameters and their descriptions see the code docs in \code\modules\nano\nanoui.dm
 		ui = new(user, src, ui_key, "geoscanner.tmpl", "High Res Radiocarbon Spectrometer", 900, 825)
-		// When the UI is first opened this is the data it will use
-		ui.set_initial_data(data)
+		// when the ui is first opened this is the data it will use
+		ui.set_initial_data(data)		
+		// open the new ui window
 		ui.open()
-		// Auto update every Master Controller tick
+		// auto update every Master Controller tick
 		ui.set_auto_update(1)
-	else
-		// The UI is already open so push the new data to it
-		ui.push_data(data)
-		return
 
 /obj/machinery/radiocarbon_spectrometer/process()
 	if(scanning)