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diff --git a/srcjar/fr/orsay/lri/varna/utils/XMLUtils.java b/srcjar/fr/orsay/lri/varna/utils/XMLUtils.java
new file mode 100644
index 0000000..e3acefc
--- /dev/null
+++ b/srcjar/fr/orsay/lri/varna/utils/XMLUtils.java
@@ -0,0 +1,148 @@
+package fr.orsay.lri.varna.utils;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.util.ArrayList;
+import java.util.Formatter;
+
+import javax.xml.transform.sax.TransformerHandler;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.AttributesImpl;
+
+import fr.orsay.lri.varna.models.rna.ModeleBase;
+import fr.orsay.lri.varna.models.rna.RNA;
+
+public class XMLUtils {
+	public static String toHTMLNotation(Color c)
+	{
+		Formatter f = new Formatter();
+		f.format("#%02X%02X%02X", c.getRed(),c.getGreen(),c.getBlue());
+		return f.toString();
+	}
+
+	public static void toXML(TransformerHandler hd, Font f) throws SAXException
+	{
+		toXML(hd, f,"");
+	}
+	
+
+	public static String XML_BASELIST_ELEMENT_NAME = "baselist";
+	public static String XML_FONT_ELEMENT_NAME = "font";
+	public static String XML_ROLE_NAME = "role";
+	public static String XML_NAME_NAME = "name";
+	public static String XML_FAMILY_NAME = "family";
+	public static String XML_STYLE_NAME = "style";
+	public static String XML_SIZE_NAME = "size";
+	
+	public static void toXML(TransformerHandler hd, Font f, String role) throws SAXException
+	{
+		AttributesImpl atts = new AttributesImpl();
+		if (!role.equals(""))
+		  atts.addAttribute("","",XML_ROLE_NAME,"CDATA",""+role);
+		atts.addAttribute("","",XML_NAME_NAME,"CDATA",""+f.getName());
+		//atts.addAttribute("","",XML_FAMILY_NAME,"CDATA",""+f.getFamily());
+		atts.addAttribute("","",XML_STYLE_NAME,"CDATA",""+f.getStyle());
+		atts.addAttribute("","",XML_SIZE_NAME,"CDATA",""+f.getSize2D());
+		hd.startElement("","",XML_FONT_ELEMENT_NAME,atts);
+		hd.endElement("","",XML_FONT_ELEMENT_NAME);
+	}
+
+	public static Font getFont(String qName, Attributes attributes)
+	{
+		if (qName.equals(XMLUtils.XML_FONT_ELEMENT_NAME)){
+			int style = Integer.parseInt(attributes.getValue(XMLUtils.XML_STYLE_NAME));			
+			String name = (attributes.getValue(XMLUtils.XML_NAME_NAME));			
+			double size = Double.parseDouble(attributes.getValue(XMLUtils.XML_SIZE_NAME));
+			Font f = new Font(name, style, (int)size);
+			return f.deriveFont((float)size);
+		}
+		return null;
+	}
+	
+
+	public static void toXML(TransformerHandler hd, ModeleBase mb) throws SAXException
+	{
+		ArrayList<ModeleBase> m = new ArrayList<ModeleBase>();
+		m.add(mb);
+		toXML(hd, m);
+	}
+
+
+	public static void toXML(TransformerHandler hd, ArrayList<ModeleBase> m) throws SAXException
+	{		
+		AttributesImpl atts = new AttributesImpl();
+		String result = "";
+		for (ModeleBase mb: m)
+		{
+			if (!result.equals(""))
+				result+= ",";
+			result += mb.getIndex();
+					
+		}
+		hd.startElement("","",XML_BASELIST_ELEMENT_NAME,atts);
+		exportCDATAString(hd, result);
+		hd.endElement("","",XML_BASELIST_ELEMENT_NAME);
+	}
+
+	public static ArrayList<ModeleBase> toModeleBaseArray(String baselist, RNA rna)
+	{
+		ArrayList<ModeleBase> result = new ArrayList<ModeleBase>();
+		String[] data = baselist.trim().split(",");
+		for(int i=0;i<data.length;i++)
+		{
+			int index = Integer.parseInt(data[i]);
+			result.add(rna.getBaseAt(index));
+		}
+			
+		return result;
+	}
+	
+	public static void exportCDATAElem(TransformerHandler hd,String elem, String s) throws SAXException
+	{
+		char[] t = s.toCharArray();
+		AttributesImpl atts = new AttributesImpl();
+		hd.startElement("","",elem,atts);
+		hd.startCDATA();
+		hd.characters(t, 0, t.length);
+		hd.endCDATA();
+		hd.endElement("","",elem);
+	}
+	
+	public static void exportCDATAString(TransformerHandler hd, String s) throws SAXException
+	{
+		char[] t = s.toCharArray();
+		hd.startCDATA();
+		hd.characters(t, 0, t.length);
+		hd.endCDATA();
+	}
+	public static boolean getBoolean(Attributes attributes, String attName, boolean defVal)
+	{
+		String val = attributes.getValue(attName);
+		if (val!=null)
+		{
+			return Boolean.parseBoolean(val);
+		}
+		return defVal;
+	}
+	public static int getInt(Attributes attributes, String attName, int defVal)
+	{
+		String val = attributes.getValue(attName);
+		if (val!=null)
+		{
+			return Integer.parseInt(val);
+		}
+		return defVal;
+	}
+	public static double getDouble(Attributes attributes, String attName, double defVal)
+	{
+		String val = attributes.getValue(attName);
+		if (val!=null)
+		{
+			return Double.parseDouble(val);
+		}
+		return defVal;
+	}
+	
+}