diff --git a/autoload/zencoding.vim b/autoload/zencoding.vim
index a495409..235a023 100644
--- a/autoload/zencoding.vim
+++ b/autoload/zencoding.vim
@@ -511,83 +511,8 @@ function! zencoding#removeTag()
 endfunction
 
 function! zencoding#balanceTag(flag) range
-  let vblock = zencoding#util#getVisualBlock()
-  if a:flag == -2 || a:flag == 2
-    let curpos = [0, line("'<"), col("'<"), 0]
-  else
-    let curpos = getpos('.')
-  endif
-  while 1
-    let mx = '<\(/\{0,1}[a-zA-Z][a-zA-Z0-9:_\-]*\)[^>]*>'
-    let pos1 = searchpos(mx, (a:flag == -2 ? 'nW' : 'bcnW'))
-    let content = matchstr(getline(pos1[0])[pos1[1]-1:], mx)
-    let tag_name = substitute(content, '^<\(/\{0,1}[a-zA-Z0-9:_\-]*\).*$', '\1', '')
-    let block = [pos1, [pos1[0], pos1[1] + len(content) - 1]]
-    if !zencoding#util#regionIsValid(block)
-      break
-    endif
-    if content[-2:] == '/>' && zencoding#util#pointInRegion(curpos[1:2], block)
-      call zencoding#util#selectRegion(block)
-      return
-    else
-      if tag_name[0] == '/'
-        let pos1 = searchpos('<' . tag_name[1:] . '[^a-zA-Z0-9]', a:flag == -2 ? 'nW' : 'bcnW')
-        if pos1[0] == 0
-          break
-        endif
-        call setpos('.', [0, pos1[0], pos1[1], 0])
-        let pos2 = searchpos('</' . tag_name[1:] . '>', 'cneW')
-      else
-        let pos2 = searchpos('</' . tag_name . '>', 'cneW')
-      endif
-      let block = [pos1, pos2]
-      if !zencoding#util#regionIsValid(block)
-        break
-      endif
-      let content = zencoding#util#getContent(block)
-      if a:flag == -2
-        let check = zencoding#util#regionInRegion(vblock, block) && content[1:] !~ '<' . tag_name . '[^a-zA-Z0-9]*[^>]*>'
-      else
-        let check = zencoding#util#pointInRegion(curpos[1:2], block) && content[1:] !~ '<' . tag_name . '[^a-zA-Z0-9]*[^>]*>'
-      endif
-      if check
-        if a:flag < 0
-          let l = getline(pos1[0])
-          let content = matchstr(l[pos1[1]-1:], mx)
-          if pos1[1] + len(content) > len(l)
-            let pos1[0] += 1
-          else
-            let pos1[1] += len(content)
-          endif
-          let pos2 = searchpos('\(\n\|.\)</' . tag_name . '>', 'cnW')
-        else
-          let pos2 = searchpos('</' . tag_name . '>', 'cneW')
-        endif
-        let block = [pos1, pos2]
-        call zencoding#util#selectRegion(block)
-        return
-      else
-        if zencoding#util#regionIsValid(block)
-          if a:flag == -2
-            if setpos('.', [0, block[0][0]+1, block[0][1], 0]) == -1
-              break
-            endif
-          else
-            if setpos('.', [0, block[0][0]-1, block[0][1], 0]) == -1
-              break
-            endif
-          endif
-        else
-          break
-        endif
-      endif
-    endif
-  endwhile
-  if a:flag == -2 || a:flag == 2
-    silent! exe "normal! gv"
-  else
-    call setpos('.', curpos)
-  endif
+  let rtype = len(globpath(&rtp, 'autoload/zencoding/lang/'.&ft.'.vim')) ? &ft : 'html'
+  return zencoding#lang#{rtype}#balanceTag(a:flag)
 endfunction
 
 function! zencoding#anchorizeURL(flag)
diff --git a/autoload/zencoding/lang/css.vim b/autoload/zencoding/lang/css.vim
index c5fd005..e8c41ca 100644
--- a/autoload/zencoding/lang/css.vim
+++ b/autoload/zencoding/lang/css.vim
@@ -87,3 +87,41 @@ function! zencoding#lang#css#toggleComment()
     call setline('.', line)
   endif
 endfunction
+
+function! zencoding#lang#css#balanceTag(flag) range
+  if a:flag == -2 || a:flag == 2
+    let curpos = [0, line("'<"), col("'<"), 0]
+  else
+    let curpos = getpos('.')
+  endif
+  let block = zencoding#util#getVisualBlock()
+  if !zencoding#util#regionIsValid(block)
+    if a:flag > 0
+      let block = zencoding#util#searchRegion('^', ';')
+      call zencoding#util#selectRegion(block)
+	  return
+    endif
+  else
+    if a:flag > 0
+      let content = zencoding#util#getContent(block)
+      if content !~ '^{.*}$'
+        let block = zencoding#util#searchRegion('{', '}')
+        call zencoding#util#selectRegion(block)
+        return
+	  endif
+    else
+      let pos = searchpos('.*;', 'nW')
+      if pos[0] != 0
+        call setpos('.', [0, pos[0], pos[1], 0])
+        let block = zencoding#util#searchRegion('^', ';')
+        call zencoding#util#selectRegion(block)
+		return
+      endif
+    endif
+  endif
+  if a:flag == -2 || a:flag == 2
+    silent! exe "normal! gv"
+  else
+    call setpos('.', curpos)
+  endif
+endfunction
diff --git a/autoload/zencoding/lang/haml.vim b/autoload/zencoding/lang/haml.vim
index bbf4159..d4a60f4 100644
--- a/autoload/zencoding/lang/haml.vim
+++ b/autoload/zencoding/lang/haml.vim
@@ -123,3 +123,6 @@ function! zencoding#lang#haml#toggleComment()
     call setline('.', space . '-# ' . line[len(space):])
   endif
 endfunction
+
+function! zencoding#lang#haml#balanceTag(flag) range
+endfunction
diff --git a/autoload/zencoding/lang/html.vim b/autoload/zencoding/lang/html.vim
index 456f258..d108873 100644
--- a/autoload/zencoding/lang/html.vim
+++ b/autoload/zencoding/lang/html.vim
@@ -493,3 +493,83 @@ function! zencoding#lang#html#toggleComment()
     endif
   endwhile
 endfunction
+
+function! zencoding#lang#html#balanceTag(flag) range
+  let vblock = zencoding#util#getVisualBlock()
+  if a:flag == -2 || a:flag == 2
+    let curpos = [0, line("'<"), col("'<"), 0]
+  else
+    let curpos = getpos('.')
+  endif
+  while 1
+    let mx = '<\(/\{0,1}[a-zA-Z][a-zA-Z0-9:_\-]*\)[^>]*>'
+    let pos1 = searchpos(mx, (a:flag == -2 ? 'nW' : 'bcnW'))
+    let content = matchstr(getline(pos1[0])[pos1[1]-1:], mx)
+    let tag_name = substitute(content, '^<\(/\{0,1}[a-zA-Z0-9:_\-]*\).*$', '\1', '')
+    let block = [pos1, [pos1[0], pos1[1] + len(content) - 1]]
+    if !zencoding#util#regionIsValid(block)
+      break
+    endif
+    if content[-2:] == '/>' && zencoding#util#pointInRegion(curpos[1:2], block)
+      call zencoding#util#selectRegion(block)
+      return
+    else
+      if tag_name[0] == '/'
+        let pos1 = searchpos('<' . tag_name[1:] . '[^a-zA-Z0-9]', a:flag == -2 ? 'nW' : 'bcnW')
+        if pos1[0] == 0
+          break
+        endif
+        call setpos('.', [0, pos1[0], pos1[1], 0])
+        let pos2 = searchpos('</' . tag_name[1:] . '>', 'cneW')
+      else
+        let pos2 = searchpos('</' . tag_name . '>', 'cneW')
+      endif
+      let block = [pos1, pos2]
+      if !zencoding#util#regionIsValid(block)
+        break
+      endif
+      let content = zencoding#util#getContent(block)
+      if a:flag == -2
+        let check = zencoding#util#regionInRegion(vblock, block) && content[1:] !~ '<' . tag_name . '[^a-zA-Z0-9]*[^>]*>'
+      else
+        let check = zencoding#util#pointInRegion(curpos[1:2], block) && content[1:] !~ '<' . tag_name . '[^a-zA-Z0-9]*[^>]*>'
+      endif
+      if check
+        if a:flag < 0
+          let l = getline(pos1[0])
+          let content = matchstr(l[pos1[1]-1:], mx)
+          if pos1[1] + len(content) > len(l)
+            let pos1[0] += 1
+          else
+            let pos1[1] += len(content)
+          endif
+          let pos2 = searchpos('\(\n\|.\)</' . tag_name . '>', 'cnW')
+        else
+          let pos2 = searchpos('</' . tag_name . '>', 'cneW')
+        endif
+        let block = [pos1, pos2]
+        call zencoding#util#selectRegion(block)
+        return
+      else
+        if zencoding#util#regionIsValid(block)
+          if a:flag == -2
+            if setpos('.', [0, block[0][0]+1, block[0][1], 0]) == -1
+              break
+            endif
+          else
+            if setpos('.', [0, block[0][0]-1, block[0][1], 0]) == -1
+              break
+            endif
+          endif
+        else
+          break
+        endif
+      endif
+    endif
+  endwhile
+  if a:flag == -2 || a:flag == 2
+    silent! exe "normal! gv"
+  else
+    call setpos('.', curpos)
+  endif
+endfunction
diff --git a/autoload/zencoding/lang/slim.vim b/autoload/zencoding/lang/slim.vim
index 29abf3d..955a636 100644
--- a/autoload/zencoding/lang/slim.vim
+++ b/autoload/zencoding/lang/slim.vim
@@ -113,3 +113,6 @@ function! zencoding#lang#slim#toggleComment()
     call setline('.', space . '/' . line[len(space):])
   endif
 endfunction
+
+function! zencoding#lang#slim#balanceTag(flag) range
+endfunction