[JQuery] Progress Slider Functionality

//============================================
// Progress Slider Functionality
//============================================
// Mad props to Doug Avery (http://www.google.com/profiles/dougunderscorenelson)
$.fn.simplify = function(string){
  var new_string = string.replace(/[^\d\.-]/g,"");
  alert(new_string);
  return new_string;
};
 
$(".progress-slider").addClass("sliderized");
$("li.goal").each(function(){
    var count = $(this).find(".count").html();
    var target = $(this).find(".target").html();
    var processed_count = $(this).simplify(count);
    var processed_target = $(this).simplify(target);
    var percent = (processed_count/processed_target)*100;
 
    $(this).find(".heading").after('<div class="container-slider"><div class="slider" style="background-position:'+percent+'%  0;"></div></div>');
});
 
 
<!-- Here's a bit of example (X)HTML to go with this:
 
<div>
  <h2>Project Progress</h2>
  <ul>
  	<li>
  		<h3>Our Membership Status</h3>
  		<p><strong>150</strong> members so far towards our goal of <strong>500</strong></p>
  	</li>
  	<li>
  		<h3>Our Fundraising Status</h3>
  		<p><strong>$200</strong> raised so far towards our goal of <strong>$50,000</strong></p>
  	</li>
  </ul>
</div> -->