def OnClick(self, event):
        name = event.GetEventObject().GetLabelText()

        cursor= self.conn.execute("SELECT * FROM ELEMENT where SYMBOL==?", [name])

        elements = cursor.fetchall()

        print elements

        cursor= self.conn.execute("SELECT ATOMIC_NUMBER FROM ELEMENT where SYMBOL = ?", [name])

        numbers = cursor.fetchall()

        print numbers
        atomicnumber = numbers[0][0]

        cursor= self.conn.execute("SELECT MOL_NUMBER FROM LINK where ELEMENT_NUMBER = ?", [atomicnumber])

        mnumbers = cursor.fetchall()
        print mnumbers
        combinations = atomicnumber[0][0]
    def intersect (*combination ):
        sets = iter(map(set, combinations))
        result = st.next()
        for s in sets:
             results = result.intersection (s)
        return result