diff --git a/runtime/syntax/smil.vim b/runtime/syntax/smil.vim
new file mode 100644
index 0000000..0b53d8e
--- /dev/null
+++ b/runtime/syntax/smil.vim
@@ -0,0 +1,154 @@
+" Vim syntax file
+" Language:	SMIL (Synchronized Multimedia Integration Language)
+" Maintainer:	Herve Foucher <Herve.Foucher@helio.org>
+" URL:		http://www.helio.org/vim/syntax/smil.vim
+" Last Change:	2003 May 11
+
+" To learn more about SMIL, please refer to http://www.w3.org/AudioVideo/
+" and to http://www.helio.org/products/smil/tutorial/
+
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+" SMIL is case sensitive
+syn case match
+
+" illegal characters
+syn match smilError "[<>&]"
+syn match smilError "[()&]"
+
+if !exists("main_syntax")
+  let main_syntax = 'smil'
+endif
+
+" tags
+syn match   smilSpecial  contained "\\\d\d\d\|\\."
+syn match   smilSpecial  contained "("
+syn match   smilSpecial  contained "id("
+syn match   smilSpecial  contained ")"
+syn keyword smilSpecial  contained remove freeze true false on off overdub caption new pause replace
+syn keyword smilSpecial  contained first last
+syn keyword smilSpecial  contained fill meet slice scroll hidden
+syn region  smilString   contained start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=smilSpecial
+syn region  smilString   contained start=+'+ skip=+\\\\\|\\'+ end=+'+ contains=smilSpecial
+syn match   smilValue    contained "=[\t ]*[^'" \t>][^ \t>]*"hs=s+1
+syn region  smilEndTag		   start=+</+	 end=+>+	      contains=smilTagN,smilTagError
+syn region  smilTag		   start=+<[^/]+ end=+>+	      contains=smilTagN,smilString,smilArg,smilValue,smilTagError,smilEvent,smilCssDefinition
+syn match   smilTagN     contained +<\s*[-a-zA-Z0-9]\++ms=s+1 contains=smilTagName,smilSpecialTagName
+syn match   smilTagN     contained +</\s*[-a-zA-Z0-9]\++ms=s+2 contains=smilTagName,smilSpecialTagName
+syn match   smilTagError contained "[^>]<"ms=s+1
+
+" tag names
+syn keyword smilTagName contained smil head body anchor a switch region layout meta
+syn match   smilTagName contained "root-layout"
+syn keyword smilTagName contained par seq
+syn keyword smilTagName contained animation video img audio ref text textstream
+syn match smilTagName contained "\<\(head\|body\)\>"
+
+
+" legal arg names
+syn keyword smilArg contained dur begin end href target id coords show title abstract author copyright alt
+syn keyword smilArg contained left top width height fit src name content fill longdesc repeat type
+syn match   smilArg contained "z-index"
+syn match   smilArg contained " end-sync"
+syn match   smilArg contained " region"
+syn match   smilArg contained "background-color"
+syn match   smilArg contained "system-bitrate"
+syn match   smilArg contained "system-captions"
+syn match   smilArg contained "system-overdub-or-caption"
+syn match   smilArg contained "system-language"
+syn match   smilArg contained "system-required"
+syn match   smilArg contained "system-screen-depth"
+syn match   smilArg contained "system-screen-size"
+syn match   smilArg contained "clip-begin"
+syn match   smilArg contained "clip-end"
+syn match   smilArg contained "skip-content"
+
+
+" SMIL Boston ext.
+" This are new SMIL functionnalities seen on www.w3.org on August 3rd 1999
+
+" Animation
+syn keyword smilTagName contained animate set move
+syn keyword smilArg contained calcMode from to by additive values origin path
+syn keyword smilArg contained accumulate hold attribute
+syn match   smilArg contained "xml:link"
+syn keyword smilSpecial contained discrete linear spline parent layout
+syn keyword smilSpecial contained top left simple
+
+" Linking
+syn keyword smilTagName contained area
+syn keyword smilArg contained actuate behavior inline sourceVolume
+syn keyword smilArg contained destinationVolume destinationPlaystate tabindex
+syn keyword smilArg contained class style lang dir onclick ondblclick onmousedown onmouseup onmouseover onmousemove onmouseout onkeypress onkeydown onkeyup shape nohref accesskey onfocus onblur
+syn keyword smilSpecial contained play pause stop rect circ poly child par seq
+
+" Media Object
+syn keyword smilTagName contained rtpmap
+syn keyword smilArg contained port transport encoding payload clipBegin clipEnd
+syn match   smilArg contained "fmt-list"
+
+" Timing and Synchronization
+syn keyword smilTagName contained excl
+syn keyword smilArg contained beginEvent endEvent eventRestart endSync repeatCount repeatDur
+syn keyword smilArg contained syncBehavior syncTolerance
+syn keyword smilSpecial contained canSlip locked
+
+" special characters
+syn match smilSpecialChar "&[^;]*;"
+
+if exists("smil_wrong_comments")
+  syn region smilComment		start=+<!--+	  end=+-->+
+else
+  syn region smilComment		start=+<!+	  end=+>+   contains=smilCommentPart,smilCommentError
+  syn match  smilCommentError contained "[^><!]"
+  syn region smilCommentPart  contained start=+--+	  end=+--+
+endif
+syn region smilComment		      start=+<!DOCTYPE+ keepend end=+>+
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_smil_syntax_inits")
+  if version < 508
+    let did_smil_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink smilTag			Function
+  HiLink smilEndTag			Identifier
+  HiLink smilArg			Type
+  HiLink smilTagName			smilStatement
+  HiLink smilSpecialTagName		Exception
+  HiLink smilValue			Value
+  HiLink smilSpecialChar		Special
+
+  HiLink smilSpecial			Special
+  HiLink smilSpecialChar		Special
+  HiLink smilString			String
+  HiLink smilStatement			Statement
+  HiLink smilComment			Comment
+  HiLink smilCommentPart		Comment
+  HiLink smilPreProc			PreProc
+  HiLink smilValue			String
+  HiLink smilCommentError		smilError
+  HiLink smilTagError			smilError
+  HiLink smilError			Error
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "smil"
+
+if main_syntax == 'smil'
+  unlet main_syntax
+endif
+
+" vim: ts=8