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js/jquery.ba-cond.js

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+/*!
+ * cond - v0.1 - 6/10/2009
+ * http://benalman.com/projects/jquery-cond-plugin/
+ * 
+ * Copyright (c) 2009 "Cowboy" Ben Alman
+ * Licensed under the MIT license
+ * http://benalman.com/about/license/
+ * 
+ * Based on suggestions and sample code by Stephen Band and DBJDBJ in the
+ * jquery-dev Google group: http://bit.ly/jqba1
+ */
+
+(function($){
+  '$:nomunge'; // Used by YUI compressor.
+  
+  $.fn.cond = function() {
+    var undefined,
+      args = arguments,
+      i = 0,
+      test,
+      callback,
+      result;
+    
+    while ( !test && i < args.length ) {
+      test = args[ i++ ];
+      callback = args[ i++ ];
+      
+      test = $.isFunction( test ) ? test.call( this ) : test;
+      
+      result = !callback ? test
+        : test ? callback.call( this, test )
+        : undefined;
+    }
+    
+    return result !== undefined ? result : this;
+  };
+  
+})(jQuery);