From ccf76e430b7703db028966a845a966f50956f490 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Mon, 5 Dec 2005 01:00:16 +0000
Subject:

---
 framework/Web/Javascripts/extended/util.js | 90 ++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 framework/Web/Javascripts/extended/util.js

(limited to 'framework/Web/Javascripts/extended/util.js')

diff --git a/framework/Web/Javascripts/extended/util.js b/framework/Web/Javascripts/extended/util.js
new file mode 100644
index 00000000..1e1fad69
--- /dev/null
+++ b/framework/Web/Javascripts/extended/util.js
@@ -0,0 +1,90 @@
+/** 
+ * Test if it is an object and has no constructors.
+ */
+function isAlien(a)     { return isObject(a) && typeof a.constructor != 'function' }
+
+/** 
+ * isArray?
+ */
+function isArray(a)     { return isObject(a) && a.constructor == Array }
+
+/** 
+ * isBoolean?
+ */
+function isBoolean(a)   { return typeof a == 'boolean' }
+
+/** 
+ * isFunction?
+ */
+function isFunction(a)  { return typeof a == 'function' }
+
+/** 
+ * isNull?
+ */
+function isNull(a)      { return typeof a == 'object' && !a }
+
+/** 
+ * isNumber?
+ */
+function isNumber(a)    { return typeof a == 'number' && isFinite(a) }
+
+/** 
+ * isObject?
+ */
+function isObject(a)    { return (a && typeof a == 'object') || isFunction(a) }
+
+/** 
+ * isRegexp?
+ * we would prefer to use instanceof, but IE/mac is crippled and will choke at it
+ */
+function isRegexp(a)    { return a && a.constructor == RegExp }
+
+/** 
+ * isString?
+ */
+function isString(a)    { return typeof a == 'string' }
+
+/** 
+ * isUndefined?
+ */
+function isUndefined(a) { return typeof a == 'undefined' }
+
+/** 
+ * isEmpty?
+ */
+function isEmpty(o)     {
+    var i, v;
+    if (isObject(o)) {
+        for (i in o) {
+            v = o[i];
+            if (isUndefined(v) && isFunction(v)) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+/** 
+ * alias for isUndefined
+ */
+function undef(v) { return  isUndefined(v) }
+
+/** 
+ * alias for !isUndefined
+ */
+function isdef(v) { return !isUndefined(v) }
+
+/** 
+ * true if o is an Element Node or document or window. The last two because it's used for onload events
+    if you specify strict as true, return false for document or window
+ */
+function isElement(o, strict) {
+    return o && isObject(o) && ((!strict && (o==window || o==document)) || o.nodeType == 1)
+}
+
+/** 
+ * true if o is an Array or a NodeList, (NodeList in Opera returns a type of function)
+ */
+function isList(o) { return o && isObject(o) && (isArray(o) || o.item) }
+
-- 
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