/*
 * HoverImage - simple jQuery plugin for image mouse over effects
 *
 * Republic Factory World domination in 2008
 * A simple jQuery plugin test...
 *
 */

(function($){

  $.fn.hoverimage = function(options){

    // default parameters

    var defaults = {
     suffix: "-hover"
    };
    var options = $.extend(defaults, options);

    // code  

    return this.each(function(){
   
      // on mouse over
      $(this).hover(function() {
        
        element = $(this);

        file_extension_pos = $(element).attr('src').lastIndexOf('.');
        file_extension     = $(element).attr('src').substr(file_extension_pos);
        hover              = $(element).attr('src').lastIndexOf(options.suffix);	        

        if ( hover != -1 ) {			
          var file_name = $(element).attr('src').replace(options.suffix+file_extension, file_extension);
          $(element).attr('src', file_name);
        } else {			
          var file_name_hover = $(element).attr('src').replace(file_extension, options.suffix+file_extension);
          $(element).attr('src', file_name_hover);
        }
       
      // on mouse out
      }, function() {

        file_extension_pos = $(element).attr('src').lastIndexOf('.');
        file_extension     = $(element).attr('src').substr(file_extension_pos);
        hover              = $(element).attr('src').lastIndexOf(options.suffix);	

        if ( hover != -1 ) {			
          var file_name = $(element).attr('src').replace(options.suffix+file_extension, file_extension);
        	$(element).attr('src', file_name);
        } else {			
        	var file_name_hover = $(element).attr('src').replace(file_extension, options.suffix+file_extension);
        	$(element).attr('src', file_name_hover);
        }

      });

    });
  
  };
   
})(jQuery);