editor.getSession().selection.on("keydown", function(e){ console.log("keydown...")});
              editor.getSession().on("change", function(e){ console.log("change...")});
              editor.getSession().selection.on("changeCursor", function(e){ 
                 console.log("changeCursor...")
                console.log(e);
              });
              editor.getSession().selection.on("changeSelection", function(e){ console.log("changeSelection...")});
                

                $("textarea").keydown( function(e){ 
                    console.log('key down: ' + e.target); 
                    return false;
                });
                $("textarea").keypress( function(e){ 
                    console.log('key press ' + e.target);
                    return false;
                });


                editor.commands.addCommand({
                    name: 'intercept delete',
                    bindKey: {
                        win: 'Backspace',
                        mac: 'Backspace',
                        sender: 'editor'
                    },
                    exec: function(env, args, request) {
                      console.log("Backspace pressed");
                      console.log( window.ace.editor.getSelection().getRange() )
                      var range =  window.ace.editor.getSelection().getRange();
                      var doc = env.getSession().getDocument();
                      var lines = doc.getAllLines();
                      console.log(lines);
                      var i = 0;


                      var length = 0;

                      if( range.start.row == 0 )
                      {
                         
                      
                      }
                      else
                      {
                        do{
                          var line = lines[i];
                          length += line.length;
                          i++
                        }
                        while( i < range.start.row);

                      }
                      length += range.start.column;
                      console.log( "selectionStart: " + length)
                      env.remove("left");
                    }
                });

        });