How I can use the onItemClick in my android application?

hi I have a problem with the onItemClick in my android application. i try it but i get a error. I want that I get data from sqlite database in my listview and can click on a value in this list to start a other actitiy with this value. see my code for more information:

my actitiy:

public class ShowActivity extends ListActivity {

my method:

private void ladeDaten() {
        Cursor KlassenCursor = mDatenbank.rawQuery(KLASSEN_SELECT_ROW, null); 
        startManagingCursor(KlassenCursor); 

        android.widget.SimpleCursorAdapter KlassenAdapter = new android.widget.SimpleCursorAdapter(this,
                android.R.layout.simple_list_item_1, 
                KlassenCursor, 
                new String[] {"name"},
                new int[] {
                android.R.id.text1
                });

        setListAdapter(KlassenAdapter);

        ListView lv = (ListView)findViewById(android.R.id.list); 

        lv.setOnItemClickListener(new OnItemClickListener() {

            public void onItemClick(AdapterView<?> parent,View view,int position,long id){

                Cursor cursor = (Cursor)parent.getItemAtPosition(position);

                String item = cursor.getString(cursor.getColumnIndex("name"));

                Intent intent = new Intent(this,ShowActivity.class); //here is the error

                intent.putExtra("iteid", item); 

                startActivity(intent);
            }
        });

    }

my layout : ...

    </ListView>

...

my error:

The constructor Intent(new AdapterView.OnItemClickListener(){}, Class<ShowActivity>) is undefined

what can I do? :(

UPDATE:

public void onItemClick(AdapterView<?> parent,View view,int position,long id){

                Cursor cursor = (Cursor)parent.getItemAtPosition(position);

                String item = cursor.getString(cursor.getColumnIndex("name"));

                Intent intent = new Intent(ShowDayActitiy,ShowDayActivity.class); //here is the error

                intent.putExtra("iteid", item); 

                startActivity(intent);
            }
        });

i want do start a ther actitiy :(

Change this

Intent intent = new Intent(this,ShowActivity.class); 

to

Intent intent = new Intent(ShowActivity.this,ShowActivity.class);