;(function($){var PLUGIN_NAME = "kzwMouseChaser";
var ImplementationClass = function(target, config) {
	var settings = $.extend({}, $[PLUGIN_NAME].defaults, config);
	var myself   = this;
	$(target).data(PLUGIN_NAME, myself);
	var ctx, circleX = 0, circleY = 0, mouseX = 0, mouseY = 0, timer = null, chaser = new Image();
	function _constructor_() {
		if(!target.getContext) { return; }
		ctx = target.getContext('2d');circleX = settings.initialX;circleY = settings.initialY;chaser.src = settings.src;
		if(chaser.complete) { startHover() } else { chaser.onload = function(){ startHover(); }; }
	}
	function startHover() {$(target).parent().hover(hover, mouseOut);}
$.extend( myself, { havingnopoint : "" }); _constructor_();
	function hover(event) {
		onMouseMove(event);
		circleX = mouseX; circleY = mouseY;
		timer = setInterval(chase, settings.frameDuration);
		$(target).parent().on('mousemove', onMouseMove);
	}
	function mouseOut(event) {
		$(target).parent().off('mousemove', onMouseMove);
		if(timer) { clearInterval(timer); }
		timer = null;
		ctx.clearRect(0, 0, target.width, target.height);
	}
	function onMouseMove(event) {var offset = $(target).offset();mouseX = event.pageX - Math.round(offset.left);mouseY = event.pageY - Math.round(offset.top);}
	function chase() {
		circleX += (mouseX - circleX) * settings.speed; circleY += (mouseY - circleY) * settings.speed;
		ctx.clearRect(0, 0, target.width, target.height);
		ctx.save();
		ctx.translate(circleX, circleY);
		ctx.rotate(Math.atan2(mouseY - circleY, mouseX - circleX) + 90 * Math.PI / 180);
		ctx.translate(-1*(circleX), -1*(circleY));
		ctx.drawImage(chaser, circleX - chaser.width/2, circleY - chaser.height/2);
		ctx.restore();
	}
}; $[PLUGIN_NAME] = {defaults : {speed: 0.05, initialX: 0, initialY: 0, frameDuration: 25, src: null} };
$.fn[PLUGIN_NAME] = function(config){return this.each(function(i){new ImplementationClass(this, config);});};
})(jQuery);