jQuery.fn.pulse = function( properties, duration, numTimes, interval) {  
   
   if (duration === undefined || duration < 0) duration = 500;
   if (duration < 0) duration = 500;

   if (numTimes === undefined) numTimes = 1;
   if (numTimes < 0) numTimes = 0;

   if (interval === undefined || interval < 0) interval = 0;

   return this.each(function() {
	  var $this = jQuery(this);
	  var origProperties = {};
	  for (property in properties) {
		 origProperties[property] = $this.css(property);
	  }

	  var subsequentTimeout = 0;
	  for (var i = 0; i < numTimes; i++) {
		 window.setTimeout(function() {
			$this.animate(
			   properties,
			   {
				  duration:duration / 2,
				  complete:function(){
					 $this.animate(origProperties, duration / 2)}
			   }
			);
		 }, (duration + interval)* i);
	  }
   });
  
};

$(document).ready(function() {
	
	setTimeout(function() {
	var properties = {
	   color : '#00aeef'
	};
	var element = $('#newsletter-toggle');
	element.pulse(properties, 500, 100, 20000);
	}, 20000);

});