Adds placeholder text for js disabled browsers. Refs #1292.

doc/lib.txt

@@ -594,7 +594,8 @@ compiler.
 
 .. raw:: html
 
-  <div id="officialPkgList"></div>
+  <div id="officialPkgList"><b>If you are reading this you are missing
+  babelpkglist.js or have javascript disabled in your browser.</b></div>
 
 Unofficial packages
 -------------------
@@ -605,7 +606,8 @@ Nimrod programming language.
 
 .. raw:: html
 
-  <div id="unofficialPkgList"></div>
+  <div id="unofficialPkgList"><b>If you are reading this you are missing
+  babelpkglist.js or have javascript disabled in your browser.</b></div>
 
   <script type="text/javascript" src="babelpkglist.js"></script>
   <script type="text/javascript" src="http://build.nimrod-lang.org/packages?callback=gotPackageList"></script>

web/babelpkglist.nim

@@ -50,19 +50,17 @@ proc processContent(content: string) =
 
   var officialPkgListDiv = document.getElementById("officialPkgList")
 
-  officialPkgListDiv.innerHTML.add(
+  officialPkgListDiv.innerHTML =
     p("There are currently " & $officialCount &
       " official packages in the Babel package repository.") &
     ul(officialList)
-  )
 
   var unofficialPkgListDiv = document.getElementById("unofficialPkgList")
 
-  unofficialPkgListDiv.innerHTML.add(
+  unofficialPkgListDiv.innerHTML =
     p("There are currently " & $unofficialCount &
       " unofficial packages in the Babel package repository.") &
     ul(unofficialList)
-  )
 
 proc gotPackageList(apiReply: TData) {.exportc.} =
   let decoded = decodeContent($apiReply.content)