jQuery Custom Method Example From http://learn.jquery.com/plugins/basic-plugin-creation/

jquery-custom-method-example.js

(function( $ ) {
  $.fn.showLinkLocation = function() {
    this.filter( "a" ).each(function() {
      var link = $( this );            
      link.append( " (" + link.attr( "href" ) + ")" );        
    });         
    
    return this;     
    
  }; 
}( jQuery )); // Usage example:$( "a" ).showLinkLocation();