rem: handle.keypress(function(event) { switch (event.keyCode) { case 37: case 38: case 39: case 40: return false; } }); 
add: $(nextGroup.group).each(function () {groupHeight += $(this).is(':hidden') ? 0 : this.offsetHeight}); 
context:   handle.keypress(function(event) {    switch (event.keyCode) {      case 37: // Left arrow.      case 38: // Up arrow.      case 39: // Right arrow.      case 40: // Down arrow.        return false;    }  });
meta: 6801	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6801/ff6ce75f7b41eb8806b679d3901f7ac6cee8a6e8/tabledrag.js/buggy/misc/tabledrag.js