Index: src/main/java/org/gvsig/expressionfield/ExpressionFieldExtension.java
===================================================================
--- src/main/java/org/gvsig/expressionfield/ExpressionFieldExtension.java	(revisione 42)
+++ src/main/java/org/gvsig/expressionfield/ExpressionFieldExtension.java	(copia locale)
@@ -72,6 +72,7 @@
 import org.gvsig.expressionfield.project.documents.table.operators.Max;
 import org.gvsig.expressionfield.project.documents.table.operators.Min;
 import org.gvsig.expressionfield.project.documents.table.operators.Minus;
+import org.gvsig.expressionfield.project.documents.table.operators.Mod;
 import org.gvsig.expressionfield.project.documents.table.operators.MoreEquals;
 import org.gvsig.expressionfield.project.documents.table.operators.MoreThan;
 import org.gvsig.expressionfield.project.documents.table.operators.Perimeter;
@@ -209,6 +210,7 @@
         extensionPoints.append(Max.class.toString(), "", Max.class);
         extensionPoints.append(Min.class.toString(), "", Min.class);
         extensionPoints.append(Minus.class.toString(), "", Minus.class);
+        extensionPoints.append(Mod.class.toString(), "", Mod.class);
         extensionPoints.append(MoreEquals.class.toString(), "", MoreEquals.class);
         extensionPoints.append(MoreThan.class.toString(), "", MoreThan.class);
         extensionPoints.append(Perimeter.class.toString(), "", Perimeter.class);
@@ -218,10 +220,7 @@
         extensionPoints.append(PointY.class.toString(), "", PointY.class);
         extensionPoints.append(Pow.class.toString(), "", Pow.class);
         extensionPoints.append(Random.class.toString(), "", Random.class);
-
-        // Added November 2013
         extensionPoints.append(RecordIndex.class.toString(), "", RecordIndex.class);
-
         extensionPoints.append(Replace.class.toString(), "", Replace.class);
         extensionPoints.append(Round.class.toString(), "", Round.class);
         extensionPoints.append(SetTimeDate.class.toString(), "", SetTimeDate.class);
Index: src/main/java/org/gvsig/expressionfield/project/documents/table/operators/Mod.java
===================================================================
--- src/main/java/org/gvsig/expressionfield/project/documents/table/operators/Mod.java	(revisione 0)
+++ src/main/java/org/gvsig/expressionfield/project/documents/table/operators/Mod.java	(copia locale)
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ *
+ *   gvSIG. Desktop Geographic Information System.
+ *  
+ *   Copyright (C) 2007-2015 gvSIG Association.
+ *  
+ *   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 3
+ *   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., 51 Franklin Street, Fifth Floor, Boston,
+ *   MA  02110-1301, USA.
+ *  
+ *   For any additional information, do not hesitate to contact us
+ *   at info AT gvsig.com, or visit our website www.gvsig.com.
+ *   
+ *******************************************************************************/
+package org.gvsig.expressionfield.project.documents.table.operators;
+
+import org.apache.bsf.BSFException;
+import org.apache.bsf.BSFManager;
+import org.gvsig.andami.PluginServices;
+import org.gvsig.expressionfield.ExpressionFieldExtension;
+import org.gvsig.expressionfield.project.documents.table.AbstractOperator;
+import org.gvsig.expressionfield.project.documents.table.IOperator;
+
+/**
+ * @author Antonio Falciano
+ */
+public class Mod extends AbstractOperator{
+
+	public String addText(String s) {
+		return toString()+"("+s+")";
+	}
+	public String toString() {
+		return "mod";
+	}
+	public void eval(BSFManager interpreter) throws BSFException {
+		interpreter.exec(ExpressionFieldExtension.JYTHON,null,-1,-1,"def mod(value1, value2):\n" +
+				"  return (value1 % value2)");
+	}
+	public boolean isEnable() {
+		return (getType()==IOperator.NUMBER);
+	}
+	public String getTooltip(){
+		return PluginServices.getText(this,"operator")+":  "+toString()+ "("+ PluginServices.getText(this,"parameter")+"1,"+PluginServices.getText(this,"parameter")+"2"+")\n"+getDescription();
+	}
+	public String getDescription() {
+        return PluginServices.getText(this, "parameter") + "1"+": " +
+        PluginServices.getText(this, "numeric_value") + "\n"+
+        PluginServices.getText(this, "parameter") + "2"+": " +
+        PluginServices.getText(this, "numeric_value") + "\n"+
+        PluginServices.getText(this, "returns") + ": " +
+        PluginServices.getText(this, "numeric_value") + "\n" +
+        PluginServices.getText(this, "description") + ": " +
+        "Returns the remainder of division of one number by another.";
+    }
+}