summaryrefslogtreecommitdiff
path: root/codemirror_ui/lib/CodeMirror-2.3/index.html
blob: 3d53518a40779b6f77841e952c354fc953d3a5a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
<!doctype html>
<html>
  <head>
    <title>CodeMirror</title>
    <link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Droid+Sans|Droid+Sans:bold"/>
    <link rel="stylesheet" type="text/css" href="doc/docs.css"/>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <link rel="alternate" href="http://twitter.com/statuses/user_timeline/242283288.rss" type="application/rss+xml"/>
  </head>
  <body>

<h1><span class="logo-braces">{ }</span> <a href="http://codemirror.net/">CodeMirror</a></h1>

<pre class="grey">
<img src="doc/baboon.png" class="logo" alt="logo"/>/* In-browser code editing
   made bearable */
</pre>

<div class="clear"><div class="left blk">

  <p style="margin-top: 0">CodeMirror is a JavaScript component that
  provides a code editor in the browser. When a mode is available for
  the language you are coding in, it will color your code, and
  optionally help with indentation.</p>

  <p>A <a href="doc/manual.html">rich programming API</a> and a CSS
  theming system are available for customizing CodeMirror to fit your
  application, and extending it with new functionality.</p>

  <div class="clear"><div class="left1 blk">

    <h2 style="margin-top: 0">Supported modes:</h2>

    <ul>
      <li><a href="mode/clike/index.html">C, C++, C#</a></li>
      <li><a href="mode/clojure/index.html">Clojure</a></li>
      <li><a href="mode/coffeescript/index.html">CoffeeScript</a></li>
      <li><a href="mode/css/index.html">CSS</a></li>
      <li><a href="mode/diff/index.html">diff</a></li>
      <li><a href="mode/ecl/index.html">ECL</a></li>
      <li><a href="mode/erlang/index.html">Erlang</a></li>
      <li><a href="mode/go/index.html">Go</a></li>
      <li><a href="mode/groovy/index.html">Groovy</a></li>
      <li><a href="mode/haskell/index.html">Haskell</a></li>
      <li><a href="mode/htmlembedded/index.html">HTML embedded scripts</a></li>
      <li><a href="mode/htmlmixed/index.html">HTML mixed-mode</a></li>
      <li><a href="mode/clike/index.html">Java</a></li>
      <li><a href="mode/javascript/index.html">JavaScript</a></li>
      <li><a href="mode/jinja2/index.html">Jinja2</a></li>
      <li><a href="mode/less/index.html">LESS</a></li>
      <li><a href="mode/lua/index.html">Lua</a></li>
      <li><a href="mode/markdown/index.html">Markdown</a> (<a href="mode/gfm/index.html">Github-flavour</a>)</li>
      <li><a href="mode/mysql/index.html">MySQL</a></li>
      <li><a href="mode/ntriples/index.html">NTriples</a></li>
      <li><a href="mode/pascal/index.html">Pascal</a></li>
      <li><a href="mode/perl/index.html">Perl</a></li>
      <li><a href="mode/php/index.html">PHP</a></li>
      <li><a href="mode/pig/index.html">Pig Latin</a></li>
      <li><a href="mode/plsql/index.html">PL/SQL</a></li>
      <li><a href="mode/properties/index.html">Properties files</a></li>
      <li><a href="mode/python/index.html">Python</a></li>
      <li><a href="mode/r/index.html">R</a></li>
      <li>RPM <a href="mode/rpm/spec/index.html">spec</a> and <a href="mode/rpm/changes/index.html">changelog</a></li>
      <li><a href="mode/rst/index.html">reStructuredText</a></li>
      <li><a href="mode/ruby/index.html">Ruby</a></li>
      <li><a href="mode/rust/index.html">Rust</a></li>
      <li><a href="mode/clike/scala.html">Scala</a></li>
      <li><a href="mode/scheme/index.html">Scheme</a></li>
      <li><a href="mode/shell/index.html">Shell</a></li>
      <li><a href="mode/smalltalk/index.html">Smalltalk</a></li>
      <li><a href="mode/smarty/index.html">Smarty</a></li>
      <li><a href="mode/sparql/index.html">SPARQL</a></li>
      <li><a href="mode/stex/index.html">sTeX, LaTeX</a></li>
      <li><a href="mode/tiddlywiki/index.html">Tiddlywiki</a></li>
      <li><a href="mode/tiki/index.html">Tiki wiki</a></li>
      <li><a href="mode/vbscript/index.html">VBScript</a></li>
      <li><a href="mode/velocity/index.html">Velocity</a></li>
      <li><a href="mode/verilog/index.html">Verilog</a></li>
      <li><a href="mode/xml/index.html">XML/HTML</a></li>
      <li><a href="mode/xquery/index.html">XQuery</a></li>
      <li><a href="mode/yaml/index.html">YAML</a></li>
    </ul>

  </div><div class="left2 blk">

    <h2 style="margin-top: 0">Usage demos:</h2>

    <ul>
      <li><a href="demo/complete.html">Autocompletion</a></li>
      <li><a href="demo/mustache.html">Mode overlays</a></li>
      <li><a href="demo/search.html">Search/replace</a></li>
      <li><a href="demo/folding.html">Code folding</a></li>
      <li><a href="demo/preview.html">HTML editor with preview</a></li>
      <li><a href="demo/resize.html">Auto-resizing editor</a></li>
      <li><a href="demo/marker.html">Setting breakpoints</a></li>
      <li><a href="demo/activeline.html">Highlighting the current line</a></li>
      <li><a href="demo/matchhighlighter.html">Highlighting selection matches</a></li>
      <li><a href="demo/theme.html">Theming</a></li>
      <li><a href="demo/runmode.html">Stand-alone highlighting</a></li>
      <li><a href="demo/fullscreen.html">Full-screen editing</a></li>
      <li><a href="demo/changemode.html">Mode auto-changing</a></li>
      <li><a href="demo/visibletabs.html">Visible tabs</a></li>
      <li><a href="demo/formatting.html">Autoformatting of code</a></li>
      <li><a href="demo/emacs.html">Emacs keybindings</a></li>
      <li><a href="demo/vim.html">Vim keybindings</a></li>
      <li><a href="demo/closetag.html">Automatic xml tag closing</a></li>
      <li><a href="demo/loadmode.html">Lazy mode loading</a></li>
    </ul>

    <h2>Real-world uses:</h2>

    <ul>
      <li><a href="http://jsbin.com">jsbin.com</a> (JS playground)</li>
      <li><a href="http://buzzard.ups.edu/">Sage demo</a> (math system)</li>
      <li><a href="http://www.sourcelair.com/">sourceLair</a> (online IDE)</li>
      <li><a href="http://eloquentjavascript.net/chapter1.html">Eloquent JavaScript</a> (book)</a></li>
      <li><a href="http://www.mergely.com/">Mergely</a> (interactive diffing)</li>
      <li><a href="http://paperjs.org/">Paper.js</a> (graphics scripting)</li>
      <li><a href="http://www.wescheme.org/">WeScheme</a> (learning tool)</li>
      <li><a href="http://webglplayground.net/">WebGL playground</a></li>
      <li><a href="http://ql.io/">ql.io</a> (http API query helper)</li>
      <li><a href="http://elm-lang.org/Examples.elm">Elm language examples</a></li>
      <li><a href="http://bluegriffon.org/">BlueGriffon</a> (HTML editor)</li>
      <li><a href="http://www.jshint.com/">JSHint</a> (JS linter)</li>
      <li><a href="http://kl1p.com/cmtest/1">kl1p</a> (paste service)</li>
      <li><a href="http://sqlfiddle.com">SQLFiddle</a> (SQL playground)</li>
      <li><a href="http://tour.golang.org">Go language tour</a></li>
      <li><a href="http://cssdeck.com/">CSSDeck</a> (CSS showcase)</li>
      <li><a href="http://www.ckwnc.com/">CKWNC</a> (UML editor)</li>
      <li><a href="http://www.sketchpatch.net/labs/livecodelabIntro.html">sketchPatch Livecodelab</a></li>
      <li><a href="https://thefiletree.com">The File Tree</a> (collab editor)</li>
      <li><a href="http://enjalot.com/tributary/2636296/sinwaves.js">Tributary</a> (augmented editing)</li>
    </ul>

  </div></div>

  <h2 id="code">Getting the code</h2>

  <p>All of CodeMirror is released under a <a
  href="LICENSE">MIT-style</a> license. To get it, you can download
  the <a href="http://codemirror.net/codemirror.zip">latest
  release</a> or the current <a
  href="http://codemirror.net/codemirror2-latest.zip">development
  snapshot</a> as zip files. To create a custom minified script file,
  you can use the <a href="doc/compress.html">compression API</a>.</p>

  <p>We use <a href="http://git-scm.com/">git</a> for version control.
  The main repository can be fetched in this way:</p>

  <pre class="code">git clone http://marijnhaverbeke.nl/git/codemirror2</pre>

  <p>CodeMirror can also be found on GitHub at <a
  href="http://github.com/marijnh/CodeMirror2">marijnh/CodeMirror2</a>.
  If you plan to hack on the code and contribute patches, the best way
  to do it is to create a GitHub fork, and send pull requests.</p>

  <h2 id="documention">Documentation</h2>

  <p>The <a href="doc/manual.html">manual</a> is your first stop for
  learning how to use this library. It starts with a quick explanation
  of how to use the editor, and then describes the API in detail.</p>

  <p>For those who want to learn more about the code, there is
  an <a href="doc/internals.html">overview of the internals</a> available.
  The <a href="http://github.com/marijnh/CodeMirror2">source code</a>
  itself is, for the most part, also well commented.</p>

  <h2 id="support">Support and bug reports</h2>

  <p>There is
  a <a href="http://groups.google.com/group/codemirror">Google
  group</a> (a sort of mailing list/newsgroup thing) for discussion
  and news related to CodeMirror. When reporting a bug,
  <a href="doc/reporting.html">read this first</a>. If you have
  a <a href="http://github.com">github</a> account,
  simply <a href="http://github.com/marijnh/CodeMirror2/issues">open
  an issue there</a>. Otherwise, post something to
  the <a href="http://groups.google.com/group/codemirror">group</a>,
  or e-mail me directly: <a href="mailto:marijnh@gmail.com">Marijn
  Haverbeke</a>.</p>

  <h2 id="supported">Supported browsers</h2>

  <p>The following browsers are able to run CodeMirror:</p>

  <ul>
    <li>Firefox 2 or higher</li>
    <li>Chrome, any version</li>
    <li>Safari 3 or higher</li>
    <li>Internet Explorer 7 or higher in standards (<strong>non-quirks</strong>) mode</li>
    <li>Opera 9 or higher (with some key-handling problems on OS X)</li>
  </ul>

  <p>I am not actively testing against every new browser release, and
  vendors have a habit of introducing bugs all the time, so I am
  relying on the community to tell me when something breaks.
  See <a href="#support">here</a> for information on how to contact
  me.</p>

  <h2 id="commercial">Commercial support</h2>

  <p>CodeMirror is developed and maintained by me, Marijn Haverbeke,
  in my own time. If your company is getting value out of CodeMirror,
  please consider purchasing a support contract.</p>

  <ul>
    <li>You'll be funding further work on CodeMirror.</li>
    <li>You ensure that you get a quick response when you have a
    problem, even when I am otherwise busy.</li>
  </ul>

  <p>CodeMirror support contracts exist in two
  forms—<strong>basic</strong> at €100 per month,
  and <strong>premium</strong> at €500 per
  month. <a href="mailto:marijnh@gmail.com">Contact me</a> for further
  information.</p>

</div>

<div class="right blk">

  <a href="http://codemirror.net/codemirror.zip" class="download">Download the latest release</a>

  <h2>Support CodeMirror</h2>

  <ul>
    <li>Donate
    (<span onclick="document.getElementById('paypal').submit();"
    class="quasilink">Paypal</span>
    or <span onclick="document.getElementById('bankinfo').style.display = 'block';"
             class="quasilink">bank</span>)</li>
    <li>Purchase <a href="#commercial">commercial support</a></li>
  </ul>

  <p id="bankinfo" style="display: none;">
    Bank: <i>Rabobank</i><br/>
    Country: <i>Netherlands</i><br/>
    SWIFT: <i>RABONL2U</i><br/>
    Account: <i>147850770</i><br/>
    Name: <i>Marijn Haverbeke</i><br/>
    IBAN: <i>NL26 RABO 0147 8507 70</i>
  </p>

  <h2>Reading material</h2>

  <ul>
    <li><a href="doc/manual.html">User manual</a></li>
    <li><a href="http://github.com/marijnh/CodeMirror2">Browse the code</a></li>
  </ul>

  <h2>Releases</h2>

  <p class="rel">22-06-2012: <a href="http://codemirror.net/codemirror-2.3.zip">Version 2.3</a>:</p>

  <ul class="rel-note">
    <li><strong>New scrollbar implementation</strong>. Should flicker less. Changes DOM structure of the editor.</li>
    <li>New theme: <a href="demo/theme.html?vibrant-ink">vibrant-ink</a>.</li>
    <li>Many extensions to the VIM keymap (including text objects).</li>
    <li>Add <a href="demo/multiplex.html">mode-multiplexing</a> utility script.</li>
    <li>Fix bug where right-click paste works in read-only mode.</li>
    <li>Add a <a href="doc/manual.html#getScrollInfo"><code>getScrollInfo</code></a> method.</li>
    <li>Lots of other <a href="https://github.com/marijnh/CodeMirror2/compare/v2.25...v2.3">fixes</a>.</li>
  </ul>

  <p class="rel">23-05-2012: <a href="http://codemirror.net/codemirror-2.25.zip">Version 2.25</a>:</p>

  <ul class="rel-note">
    <li>New mode: <a href="mode/erlang/index.html">Erlang</a>.</li>
    <li><strong>Remove xmlpure mode</strong> (use <a href="mode/xml/index.html">xml.js</a>).</li>
    <li>Fix line-wrapping in Opera.</li>
    <li>Fix X Windows middle-click paste in Chrome.</li>
    <li>Fix bug that broke pasting of huge documents.</li>
    <li>Fix backspace and tab key repeat in Opera.</li>
  </ul>

  <p class="rel">23-04-2012: <a href="http://codemirror.net/codemirror-2.24.zip">Version 2.24</a>:</p>

  <ul class="rel-note">
    <li><strong>Drop support for Internet Explorer 6</strong>.</li>
    <li>New
    modes: <a href="mode/shell/index.html">Shell</a>, <a href="mode/tiki/index.html">Tiki
    wiki</a>, <a href="mode/pig/index.html">Pig Latin</a>.</li>
    <li>New themes: <a href="demo/theme.html?ambiance">Ambiance</a>, <a href="demo/theme.html?blackboard">Blackboard</a>.</li>
    <li>More control over drag/drop
    with <a href="doc/manual.html#option_dragDrop"><code>dragDrop</code></a>
    and <a href="doc/manual.html#option_onDragEvent"><code>onDragEvent</code></a>
    options.</li>
    <li>Make HTML mode a bit less pedantic.</li>
    <li>Add <a href="doc/manual.html#compoundChange"><code>compoundChange</code></a> API method.</li>
    <li>Several fixes in undo history and line hiding.</li>
    <li>Remove (broken) support for <code>catchall</code> in key maps,
    add <code>nofallthrough</code> boolean field instead.</li>
  </ul>

  <p class="rel">26-03-2012: <a href="http://codemirror.net/codemirror-2.23.zip">Version 2.23</a>:</p>

  <ul class="rel-note">
    <li>Change <strong>default binding for tab</strong> <a href="javascript:void(document.getElementById('tabbinding').style.display='')">[more]</a>
      <div style="display: none" id=tabbinding>
        Starting in 2.23, these bindings are default:
        <ul><li>Tab: Insert tab character</li>
          <li>Shift-tab: Reset line indentation to default</li>
          <li>Ctrl/Cmd-[: Reduce line indentation (old tab behaviour)</li>
          <li>Ctrl/Cmd-]: Increase line indentation (old shift-tab behaviour)</li>
        </ul>
      </div>
    </li>
    <li>New modes: <a href="mode/xquery/index.html">XQuery</a> and <a href="mode/vbscript/index.html">VBScript</a>.</li>
    <li>Two new themes: <a href="mode/less/index.html">lesser-dark</a> and <a href="mode/xquery/index.html">xq-dark</a>.</li>
    <li>Differentiate between background and text styles in <a href="doc/manual.html#setLineClass"><code>setLineClass</code></a>.</li>
    <li>Fix drag-and-drop in IE9+.</li>
    <li>Extend <a href="doc/manual.html#charCoords"><code>charCoords</code></a>
    and <a href="doc/manual.html#cursorCoords"><code>cursorCoords</code></a> with a <code>mode</code> argument.</li>
    <li>Add <a href="doc/manual.html#option_autofocus"><code>autofocus</code></a> option.</li>
    <li>Add <a href="doc/manual.html#findMarksAt"><code>findMarksAt</code></a> method.</li>
  </ul>

  <p class="rel">27-02-2012: <a href="http://codemirror.net/codemirror-2.22.zip">Version 2.22</a>:</p>

  <ul class="rel-note">
    <li>Allow <a href="doc/manual.html#keymaps">key handlers</a> to pass up events, allow binding characters.</li>
    <li>Add <a href="doc/manual.html#option_autoClearEmptyLines"><code>autoClearEmptyLines</code></a> option.</li>
    <li>Properly use tab stops when rendering tabs.</li>
    <li>Make PHP mode more robust.</li>
    <li>Support indentation blocks in <a href="doc/manual.html#util_foldcode">code folder</a>.</li>
    <li>Add a script for <a href="doc/manual.html#util_match-highlighter">highlighting instances of the selection</a>.</li>
    <li>New <a href="mode/properties/index.html">.properties</a> mode.</li>
    <li>Fix many bugs.</li>
  </ul>

  <p class="rel">27-01-2012: <a href="http://codemirror.net/codemirror-2.21.zip">Version 2.21</a>:</p>

  <ul class="rel-note">
    <li>Added <a href="mode/less/index.html">LESS</a>, <a href="mode/mysql/index.html">MySQL</a>,
    <a href="mode/go/index.html">Go</a>, and <a href="mode/verilog/index.html">Verilog</a> modes.</li>
    <li>Add <a href="doc/manual.html#option_smartIndent"><code>smartIndent</code></a>
    option.</li>
    <li>Support a cursor in <a href="doc/manual.html#option_readOnly"><code>readOnly</code></a>-mode.</li>
    <li>Support assigning multiple styles to a token.</li>
    <li>Use a new approach to drawing the selection.</li>
    <li>Add <a href="doc/manual.html#scrollTo"><code>scrollTo</code></a> method.</li>
    <li>Allow undo/redo events to span non-adjacent lines.</li>
    <li>Lots and lots of bugfixes.</li>
  </ul>

  <p class="rel">20-12-2011: <a href="http://codemirror.net/codemirror-2.2.zip">Version 2.2</a>:</p>

  <ul class="rel-note">
    <li>Slightly incompatible API changes. Read <a href="doc/upgrade_v2.2.html">this</a>.</li>
    <li>New approach
    to <a href="doc/manual.html#option_extraKeys">binding</a> keys,
    support for <a href="doc/manual.html#option_keyMap">custom
    bindings</a>.</li>
    <li>Support for overwrite (insert).</li>
    <li><a href="doc/manual.html#option_tabSize">Custom-width</a>
    and <a href="demo/visibletabs.html">stylable</a> tabs.</li>
    <li>Moved more code into <a href="doc/manual.html#addons">add-on scripts</a>.</li>
    <li>Support for sane vertical cursor movement in wrapped lines.</li>
    <li>More reliable handling of
    editing <a href="doc/manual.html#markText">marked text</a>.</li>
    <li>Add minimal <a href="demo/emacs.html">emacs</a>
    and <a href="demo/vim.html">vim</a> bindings.</li>
    <li>Rename <code>coordsFromIndex</code>
    to <a href="doc/manual.html#posFromIndex"><code>posFromIndex</code></a>,
    add <a href="doc/manual.html#indexFromPos"><code>indexFromPos</code></a>
    method.</li>
  </ul>

  <p class="rel">21-11-2011: <a href="http://codemirror.net/codemirror-2.18.zip">Version 2.18</a>:</p>
  <p class="rel-note">Fixes <code>TextMarker.clear</code>, which is broken in 2.17.</p>

  <p class="rel">21-11-2011: <a href="http://codemirror.net/codemirror-2.17.zip">Version 2.17</a>:</p>
  <ul class="rel-note">
    <li>Add support for <a href="doc/manual.html#option_lineWrapping">line
    wrapping</a> and <a href="doc/manual.html#hideLine">code
    folding</a>.</li>
    <li>Add <a href="mode/gfm/index.html">Github-style Markdown</a> mode.</li>
    <li>Add <a href="theme/monokai.css">Monokai</a>
    and <a href="theme/rubyblue.css">Rubyblue</a> themes.</li>
    <li>Add <a href="doc/manual.html#setBookmark"><code>setBookmark</code></a> method.</li>
    <li>Move some of the demo code into reusable components
    under <a href="lib/util/"><code>lib/util</code></a>.</li>
    <li>Make screen-coord-finding code faster and more reliable.</li>
    <li>Fix drag-and-drop in Firefox.</li>
    <li>Improve support for IME.</li>
    <li>Speed up content rendering.</li>
    <li>Fix browser's built-in search in Webkit.</li>
    <li>Make double- and triple-click work in IE.</li>
    <li>Various fixes to modes.</li>
  </ul>

  <p class="rel">27-10-2011: <a href="http://codemirror.net/codemirror-2.16.zip">Version 2.16</a>:</p>
  <ul class="rel-note">
    <li>Add <a href="mode/perl/index.html">Perl</a>, <a href="mode/rust/index.html">Rust</a>, <a href="mode/tiddlywiki/index.html">TiddlyWiki</a>, and <a href="mode/groovy/index.html">Groovy</a> modes.</li>
    <li>Dragging text inside the editor now moves, rather than copies.</li>
    <li>Add a <a href="doc/manual.html#coordsFromIndex"><code>coordsFromIndex</code></a> method.</li>
    <li><strong>API change</strong>: <code>setValue</code> now no longer clears history. Use <a href="doc/manual.html#clearHistory"><code>clearHistory</code></a> for that.</li>
    <li><strong>API change</strong>: <a href="doc/manual.html#markText"><code>markText</code></a> now
    returns an object with <code>clear</code> and <code>find</code>
    methods. Marked text is now more robust when edited.</li>
    <li>Fix editing code with tabs in Internet Explorer.</li>
  </ul>

  <p><a href="doc/oldrelease.html">Older releases...</a></p>

</div></div>

<div style="height: 2em">&nbsp;</div>

  <form action="https://www.paypal.com/cgi-bin/webscr" method="post" id="paypal">
    <input type="hidden" name="cmd" value="_s-xclick"/>
    <input type="hidden" name="hosted_button_id" value="3FVHS5FGUY7CC"/>
  </form>

  </body>
</html>