diff --git a/runtime/syntax/jgraph.vim b/runtime/syntax/jgraph.vim
new file mode 100644
index 0000000..7ecd5af
--- /dev/null
+++ b/runtime/syntax/jgraph.vim
@@ -0,0 +1,58 @@
+" Vim syntax file
+" Language:	jgraph (graph plotting utility)
+" Maintainer:	Jonas Munsin jmunsin@iki.fi
+" Last Change:	2003 May 04
+" this syntax file is not yet complete
+
+
+" 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
+
+syn case match
+
+" comments
+syn region	jgraphComment	start="(\* " end=" \*)"
+
+syn keyword	jgraphCmd	newcurve newgraph marktype
+syn keyword	jgraphType	xaxis yaxis
+
+syn keyword	jgraphType	circle box diamond triangle x cross ellipse
+syn keyword	jgraphType	xbar ybar text postscript eps none general
+
+syn keyword	jgraphType	solid dotted dashed longdash dotdash dodotdash
+syn keyword	jgraphType	dotdotdashdash pts
+
+"integer number, or floating point number without a dot. - or no -
+syn match  jgraphNumber		 "\<-\=\d\+\>"
+"floating point number, with dot - or no -
+syn match  jgraphNumber		 "\<-\=\d\+\.\d*\>"
+"floating point number, starting with a dot - or no -
+syn match  jgraphNumber		 "\-\=\.\d\+\>"
+
+
+" 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_jgraph_syn_inits")
+  if version < 508
+    let did_jgraph_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink jgraphComment	Comment
+  HiLink jgraphCmd	Identifier
+  HiLink jgraphType	Type
+  HiLink jgraphNumber	Number
+
+  delcommand HiLink
+endif
+
+
+let b:current_syntax = "jgraph"