<script type='text/javascript'>
    $(function(){
        $('img').imgPreload()
    })
</script>

<script type='text/javascript'>
$(function(){
  $('img').imghover();
});
</script>

$(document).ready(function(){
Funktion Eins
DANN
Funktion Zwei

public class SQL {
    private static SQL instance = null;
    private static Connection con = null;
    private static Statement stmt = null;
    private static ResultSet rs = null;
    
    private SQL(){
        try{
            Class.forName("com.mysql.jdbc.Driver").newInstance();

            con = DriverManager.getConnection(
                    "jdbc:mysql://localhost/blub", "root", "123456");
            
        } catch (Exception e){
            System.out.println(e.getMessage());
        }   
    }
    
    public static SQL getInstance()
    {
        if(instance == null)
            instance = new SQL();
        return instance;
    }



...



public static void close(){
        if (rs!=null){
            try{
                rs.close();
            }
            catch(Exception e){
                System.out.println(e.getMessage());
            }
        }
        if (stmt != null){
            try{
                stmt.close();
            }
            catch (Exception e){
                System.out.println(e.getMessage());
            }
        }
        if (con != null){
            try {
                con.close();
            } 
            catch (Exception e){
                System.out.println(e.getMessage());
            }
        }
    }