my current .vimrc

.vimrc

syntax on
set sts=2
set sw=2
set ts=2
set et
set autoindent
set nocindent
set smarttab
set nowrap
set number
filetype plugin on
set ruler

set fencs=utf-8,big5,gb2312

if has("autocmd")
filetype indent on
endif

augroup JumpCursorOnEdit
au!
autocmd BufReadPost *
\ if expand("<afile>:p:h") !=? $TEMP |
\ if line("'\"") > 1 && line("'\"") <= line("$") |
\ let JumpCursorOnEdit_foo = line("'\"") |
\ let b:doopenfold = 1 | 
\ if (foldlevel(JumpCursorOnEdit_foo) > foldlevel(JumpCursorOnEdit_foo - 1)) |
\ let JumpCursorOnEdit_foo = JumpCursorOnEdit_foo - 1 | 
\ let b:doopenfold = 2 | 
\ endif |
\ exe JumpCursorOnEdit_foo |
\ endif |
\ endif
" Need to postpone using "zv" until after reading the modelines.
autocmd BufWinEnter *
\ if exists("b:doopenfold") |
\ exe "normal zv" |
\ if(b:doopenfold > 1) |
\ exe "+".1 |
\ endif |
\ unlet b:doopenfold |
\ endif
augroup END 

filetype plugin on
fun! EnsureVamIsOnDisk(vam_install_path)
  " windows users may want to use http://mawercer.de/~marc/vam/index.php
  " to fetch VAM, VAM-known-repositories and the listed plugins
  " without having to install curl, 7-zip and git tools first
  " -> BUG [4] (git-less installation)
  let is_installed_c = "isdirectory(a:vam_install_path.'/vim-addon-manager/autoload')"
  if eval(is_installed_c)
    return 1
  else
    if 1 == confirm("Clone VAM into ".a:vam_install_path."?","&Y\n&N")
      " I'm sorry having to add this reminder. Eventually it'll pay off.
      call confirm("Remind yourself that most plugins ship with ".
                  \"documentation (README*, doc/*.txt). It is your ".
                  \"first source of knowledge. If you can't find ".
                  \"the info you're looking for in reasonable ".
                  \"time ask maintainers to improve documentation")
      call mkdir(a:vam_install_path, 'p')
      execute '!git clone --depth=1 git://github.com/MarcWeber/vim-addon-manager '.shellescape(a:vam_install_path, 1).'/vim-addon-manager'
      " VAM runs helptags automatically when you install or update 
      " plugins
      exec 'helptags '.fnameescape(a:vam_install_path.'/vim-addon-manager/doc')
    endif   
    return eval(is_installed_c)
  endif
endf

fun! SetupVAM()
  " Set advanced options like this:
  " let g:vim_addon_manager = {}
  " let g:vim_addon_manager['key'] = value
  "     Pipe all output into a buffer which gets written to disk
  " let g:vim_addon_manager['log_to_buf'] =1

  " Example: drop git sources unless git is in PATH. Same plugins can
  " be installed from www.vim.org. Lookup MergeSources to get more control
  " let g:vim_addon_manager['drop_git_sources'] = !executable('git')
  " let g:vim_addon_manager.debug_activation = 1

  " VAM install location:
  let vam_install_path = expand('$HOME') . '/.vim/vim-addons'
  if !EnsureVamIsOnDisk(vam_install_path)
    echohl ErrorMsg
    echomsg "No VAM found!"
    echohl NONE
    return  
  endif
  exec 'set runtimepath+='.vam_install_path.'/vim-addon-manager'

  " Tell VAM which plugins to fetch & load:
  call vam#ActivateAddons([], {'auto_install' : 0})
  " sample: call vam#ActivateAddons(['pluginA','pluginB', ...], {'auto_install' : 0})

  " Addons are put into vam_install_path/plugin-name directory
  " unless those directories exist. Then they are activated.
  " Activating means adding addon dirs to rtp and do some additional
  " magic

  " How to find addon names?
  " - look up source from pool
  " - (<c-x><c-p> complete plugin names):
  " You can use name rewritings to point to sources:
  "    ..ActivateAddons(["github:foo", .. => github://foo/vim-addon-foo
  "    ..ActivateAddons(["github:user/repo", .. => github://user/repo
  " Also see section "2.2. names of addons and addon sources" in VAM's documentation
endfun
call SetupVAM()
" experimental [E1]: load plugins lazily depending on filetype, See
" NOTES
" experimental [E2]: run after gui has been started (gvim) [3]
" option1:  au VimEnter * call SetupVAM()
" option2:  au GUIEnter * call SetupVAM()
" See BUGS sections below [*]
" Vim 7.0 users see BUGS section [3]

call vam#ActivateAddons(['vim-snippets'])