mathiasbynens · September 14, 2010 22:23 · Sep 14, 2010 · Sep 14, 2010
diff --git a/setZeroTimeout.js b/setZeroTimeout.js
@@ -44,7 +44,7 @@
 (function() {
 
 	var timeouts = [],
-	  * messageName = 'zero-timeout-message';
+	    messageName = 'zero-timeout-message';
 
 	// Like setTimeout, but only takes a function argument.  There's
 	// no time argument (always zero) and no arguments (you have to

diff --git a/setZeroTimeout.js b/setZeroTimeout.js
@@ -0,0 +1,85 @@
+/*! Cross-browser-compatible setZeroTimeout
+ *
+ * I took the original setZeroTimeout and made it cross-browser-compatible, using setTimeout(fn, 0) as a fallback in case postMessage is not supported.
+ * Mathias Bynens <http://mathiasbynens.be/>
+ * See <http://mathiasbynens.be/notes/settimeout-onload>
+ *
+ * Copyright statement below:
+ *
+ * See <http://dbaron.org/log/20100309-faster-timeouts>
+ * By L. David Baron <[email protected]>, 2010-03-07, 2010-03-09
+ * Released under the following license:
+ *
+ * Copyright (c) 2010, The Mozilla Foundation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * - notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * - notice, this list of conditions and the following disclaimer in
+ * - the documentation and/or other materials provided with the
+ * - distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// BEGIN implementation of setZeroTimeout
+
+// Only add setZeroTimeout to the window object, and hide everything else in a closure.
+(function() {
+
+	var timeouts = [],
+	  * messageName = 'zero-timeout-message';
+
+	// Like setTimeout, but only takes a function argument.  There's
+	// no time argument (always zero) and no arguments (you have to
+	// use a closure).
+	function setZeroTimeoutPostMessage(fn) {
+		timeouts.push(fn);
+		window.postMessage(messageName, '*');
+	}
+
+	function setZeroTimeout(fn) {
+		setTimeout(fn, 0);
+	}
+
+	function handleMessage(event) {
+		if (event.source == window && event.data == messageName) {
+			if (event.stopPropagation) {
+				event.stopPropagation();
+			}
+			if (timeouts.length) {
+				timeouts.shift()();
+			}
+		}
+	}
+
+	if (window.postMessage) {
+		if (window.addEventListener) {
+			window.addEventListener('message', handleMessage, true);
+		} else if (window.attachEvent) {
+			window.attachEvent('onmessage', handleMessage);
+		}
+		window.setZeroTimeout = setZeroTimeoutPostMessage;
+	} else {
+		window.setZeroTimeout = setZeroTimeout;
+	}
+
+}());
+
+// END implementation of setZeroTimeout