if (self.screen)
	{
     swidth = screen.width;
     swidth = swidth / 2;
    }
  // for NN3 w/Java 
  else if (self.java){
    var javakit = java.awt.Toolkit.getDefaultToolkit();
    var scrsize = javakit.getScreenSize();
    swidth = scrsize.width;
    swidth = swidth / 2;
  }
  var esquerda;
  if (swidth<400) {
	esquerda = 0; }
  else	{
    esquerda = (swidth-385);
  }