dialog.setMessage("Select a scenario:");
dialog.setComparator(new ViewerComparator());
dialog.addFilter(new FileExtensionFilter("script", "script2"));
dialog.setInput(ResourcesPlugin.getWorkspace().getRoot().getProject(fProjectText.getText()).getFolder("scenarios"));
if (dialog.open() == Window.OK)
{
if (dialog.getFirstResult() != null)
{
fScenarioText.setText(((IFile) dialog.getFirstResult()).getProjectRelativePath().toString());
removeScenarioButton.setEnabled(true);