How to make an image move in a circular path using jquery?

Question

Here i am trying to make an image move in a circular path but it is not moving in a circular path..I have tried like this Moving a picture around slowly

CSS

#friends { position: absolute; }

Markup

<img src="http://jsfiddle.net/img/logo.png" 
id="friends"/>

JS

function moveit() {

    var newTop = Math.floor(Math.random()*350);
    var newLeft = Math.floor(Math.random()*1024);
    var newDuration = Math.floor(Math.random()*5000);

    $('#friends').animate({
      top: newTop,
      left: newLeft,
      }, newDuration, function() {
        moveit();
      });

}

$(document).ready(function() {
    moveit();
});

Live demo: http://jsfiddle.net/W69s6/embedded/result/

Any Suggestion??

Answer 1

Another variant (based on Div Moving in cycle rotation using Javascript):

var t = 0;

function moveit() {
    t += 0.05;

    var r = 100;         // radius
    var xcenter = 100;   // center X position
    var ycenter = 100;   // center Y position

    var newLeft = Math.floor(xcenter + (r * Math.cos(t)));
    var newTop = Math.floor(ycenter + (r * Math.sin(t)));

    $('#friends').animate({
        top: newTop,
        left: newLeft,
    }, 1, function() {
        moveit();
    });
}

$(document).ready(function() {
    moveit();
});​

DEMO: http://jsfiddle.net/W69s6/20/

Answer 2

Try this using Animate:

function animateCircle(id, speed, radius, startx, starty, phi) {  
    if (!phi) { phi = 0 };
    var int = 2 * (Math.PI) / speed;
    phi = (phi >= 2 * (Math.PI)) ? 0 : (phi + int);
    var $m = startx - radius * Math.cos(phi);
    var $n = starty - radius * Math.sin(phi);

    $("#friends").animate({
        marginLeft: $m + 'px',
        marginTop: $n + 'px'
      }, 1, function() { 
             animateCircle.call(this, id, speed, radius, startx, starty, phi) 
          }
    );

};

​ You can call the function for any div like this:

animateCircle('#friends', 100, 100, 400, 250);

DEMO: http://jsfiddle.net/W69s6/18/

DEMO 2: http://jsfiddle.net/W69s6/34/

Adapted from here.