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diff --git a/VS-Sim-Sources/sources/utils/VSRandom.java b/VS-Sim-Sources/sources/utils/VSRandom.java
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+/*
+ * Copyright (c) 2008 Paul C. Buetow, vs@dev.buetow.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * All icons of the icons/ folder are 	under a Creative Commons
+ * Attribution-Noncommercial-Share Alike License a CC-by-nc-sa.
+ *
+ * The icon's homepage is http://code.google.com/p/ultimate-gnome/
+ */
+
+package utils;
+
+import java.util.Random;
+
+/**
+ * The class VSRandom. Some customization of the standard Random class of Java.
+ *
+ * @author Paul C. Buetow
+ */
+public final class VSRandom extends Random {
+    /** The serial version uid */
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * Instantiates a new VSrandom object.
+     *
+     * @param seedAdd the seed to add.
+     */
+    public VSRandom(long seedAdd) {
+        super(seedAdd*System.currentTimeMillis()+seedAdd);
+    }
+
+    /* (non-Javadoc)
+     * @see java.util.Random#nextInt()
+     */
+    public int nextInt() {
+        return Math.abs(super.nextInt());
+    }
+
+    /**
+     * Next long.
+     *
+     * @param mod the mod
+     *
+     * @return the random long
+     */
+    public long nextLong(long mod) {
+        return Math.abs((super.nextLong() + System.currentTimeMillis()) % mod);
+    }
+}