neues Fenster scrollt sich auf

<script language="JavaScript">
<!--
window_width = 810;	// the window width
window_height = 370;	// the window height 
self.focus();
var i = 0;
var x = window_height;
function scrolldown(i) {
  self.resizeTo (window_width,i);
     if(i < window_height) {
        setTimeout ("pos_down()",10);
     }
} 
function pos_down() {       		         	
  i += 4;
  scrolldown(i);
}
function scrollup(x) {
  self.resizeTo (window_width,x);
  setTimeout ("pos_up()",10);
}  
function pos_up() {       			
  if(x <= 0) {
    self.close();
  }
  x -= 4;
  scrollup(x);
}
//-->
</script>