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diff --git a/framework/Web/Javascripts/build.php b/framework/Web/Javascripts/build.php
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+++ b/framework/Web/Javascripts/build.php
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+#!/usr/bin/php
+<?php
+/**
+ * Javascript build file.
+ *
+ * This script compresses a list of javascript source files
+ * and merges them into a few for redistribution.
+ *
+ * This script should be run from command line with PHP.
+ * JRE 1.4 or above is required in order to run the js compression program.
+ *
+ * By default, all libraries will be built.
+ * You may, however, specify one or several to be built (to save time during development).
+ * To do so, pass the library names (without .js) as command line arguments.
+ * For example: php build.php base dom
+ *
+ * @author Xiang Wei Zhuo <weizhuo@gmail.com>, Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI
+ */
+
+/**
+ * The compression command line
+ */
+define('COMPRESS_COMMAND','java -jar custom_rhino.jar -c %s > %s');
+/**
+ * The root directory for storing all source js files
+ */
+define('SOURCE_DIR',dirname(__FILE__));
+/**
+ * The directory for storing compressed js files
+ */
+define('TARGET_DIR',dirname(__FILE__).'/js');
+
+/**
+ * list of js library files to be compressed and built
+ */
+$libraries = array(
+	//base javascript functions
+	'base.js' => array(
+		'prototype/prototype.js',
+		'prototype/compat.js',
+		'prototype/base.js',
+		'extended/base.js',
+		'extended/util.js',
+		'prototype/string.js',
+		'extended/string.js',
+		'prototype/enumerable.js',
+		'prototype/array.js',
+		'extended/array.js',
+		'prototype/hash.js',
+		'prototype/range.js',
+		'extended/functional.js',
+		'base/prado.js',
+		'base/postback.js',
+		'base/focus.js',
+		'base/scroll.js'
+	),
+	//dom functions
+	'dom.js' => array(
+		'prototype/dom.js',
+		'extended/dom.js',
+		'prototype/form.js',
+		'prototype/event.js',
+		'extended/event.js',
+		'prototype/position.js',
+		'extra/getElementsBySelector.js',
+		'extra/behaviour.js',
+		'effects/util.js'
+	),
+	//effects
+	'effects.js' => array(
+		'effects/effects.js'
+	),
+	//controls
+	'controls.js' => array(
+		'effects/controls.js',
+		'effects/dragdrop.js',
+		'base/controls.js'
+	),
+	//logging
+	'logger.js' => array(
+		'extra/logger.js',
+	),
+	//ajax
+	'ajax.js' => array(
+		'prototype/ajax.js',
+		'base/ajax.js',
+		'base/json.js'
+	),
+	//rico
+	'rico.js' => array(
+		'effects/rico.js'
+	),
+	//javascript templating
+	'template.js' => array(
+		'extra/tp_template.js'
+	),
+	//validator
+	'validator.js' => array(
+		'base/validation.js',
+		'base/validators.js'
+	),
+	//date picker
+	'datepicker.js' => array(
+		'base/datepicker.js'
+	)
+);
+
+/**
+ * Collect specific libraries to be built from command line
+ */
+$requestedLibs=array();
+for($i=1;$i<$argc;++$i)
+	$requestedLibs[]=$argv[$i].'.js';
+
+/**
+ * loop through all target files and build them one by one
+ */
+foreach($libraries as $libFile => $sourceFiles)
+{
+	if(!empty($requestedLibs) && !in_array($libFile,$requestedLibs))
+		continue;
+	$libFile=TARGET_DIR.'/'.$libFile;
+	$contents='';
+	foreach($sourceFiles as $sourceFile)
+	{
+		$sourceFile=SOURCE_DIR.'/'.$sourceFile;
+		if(!is_file($sourceFile))
+			echo "Source file not found: $sourceFile\n";
+		$tempFile=$sourceFile.'.tmp';
+		$command=sprintf(COMPRESS_COMMAND,$sourceFile,$tempFile);
+		echo "Compressing $sourceFile\n".
+		system($command);
+		$contents.=file_get_contents($tempFile);
+		@unlink($tempFile);
+	}
+	file_put_contents($libFile,$contents);
+}
+
+?>
+\ No newline at end of file