Here is a simple plugin for jQuery, which generate an animated svg-circle-loader.

To generate an circle-loader you shoud add a container for it. This could be any block-element, i.e. div:

<div id="loader"></div>

It's better be empty, as the creating canvas will fill all of it. And here is a little bit of js:

$(function() {
	$("#loader").circleLoader();
});

List of paramters:

• stroke – loader color — any color in valid for html format;
• strokeWidth – loader width: in px or percent. Percentage value will calculate uppon the canvas size;
• duration – one cycle animation duration.
• autostart – automatically start animation on page load

$.circleLoader() returns CircleLoader object which has the following methods:

• Start() – start animation (if animation was paused or stopped)
• Stop() – stop animation and clear the canvas
• Pause() – only stops the animation; the next Start() invoke will continious the animation.