function popup(ziel,w,h) {
  h = h - 20; var x=0, y=0, parameter="";
  if (w < screen.availWidth || h < screen.availHeight) {
    x = (screen.availWidth - w - 12) / 2;
    y = (screen.availHeight - h - 104) / 2;
    if (window.opera) y = 0; // Opera positioniert unter den Symbolleisten
    if (x<0 || y<0) { x=0; y=0; }
    else parameter = "width=" + w + ",height=" + h + ",";
  }
  parameter += "left=" + x + ",top=" + y;
  parameter += ",menubar=0,location=0,toolbar=0,status=0";
  parameter += ",resizable=1,scrollbars=1";
  var Fenster = window.open(ziel,"",parameter);
  if (Fenster) Fenster.focus();
  return !Fenster;
}

// create custom animation algorithm for jQuery called "bouncy" 
$.easing.bouncy = function (x, t, b, c, d) { 
    var s = 1.70158; 
    if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; 
    return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; 
} 
 
// create custom tooltip effect for jQuery Tooltip 
$.tools.tooltip.addEffect("bouncy", 
 
    // opening animation 
    function(done) { 
        this.getTip().animate({top: '+=5'}, 500, 'bouncy', done).show(); 
    }, 
 
    // closing animation 
    function(done) { 
        this.getTip().animate({top: '-=15'}, 500, 'bouncy', function()  { 
            $(this).hide(); 
            done.call(); 
        }); 
    } 
);