How to make this flying cloud effect?

is there any example code for the following flying “clouds and plane” effect?
it looks really nice.
can anyone help me? :frowning:

http://www.graphicairlines.com/galnew/

I just checked with my DOM Inspector, and saw that the moving cloud is an image inside a DIV element. The DIV element has a style attribute, and its ‘top’ and ‘left’ change all the time.
In java script you can do it with a function:


function move_cloud() {
  cloudDiv = Document.getElementById('c2');
  intTop = parseInt(cloudDiv.style.top);  // Get rid of the 'px'
  intTop += 1;                                   // For example
  cloudDiv.style.top = intTop + "px";     // Important to add the unit (pixels)
  intLeft = parseInt(cloudDiv.style.left); // Get rid of the 'px'
  intLeft += 1;                                  // For example
  cloudDiv.style.left = intLeft + "px";    // Important to add the unit (pixels)

  setTimeout(100, "move_cloud()");     // 1st argument depends on how fast you want
                                                     // Your picture to move.
}

Don’t forget to initially call ‘move_cloud()’ somehow.