//	JQuery Image RollOver Library
//	
//	** You must include this library AFTER the JQuery include in your page **

ImgRoller = {};

ImgRoller.rollover =
{
   start: function()
   {
      this.preload();
     
      $(".rollover").hover(
         function () { $(this).attr( 'src', ImgRoller.rollover.newimage($(this).attr('src')) ); },
         function () { $(this).attr( 'src', ImgRoller.rollover.oldimage($(this).attr('src')) ); }
      );
   },

   preload: function()
   {
      $(window).bind('load', function() {
         $('.rollover').each( function( key, elm ) { $('<img>').attr( 'src', ImgRoller.rollover.newimage( $(this).attr('src') ) ); });
      });
   },
   
   newimage: function( src )
   {
      return src.substring( 0, src.search(/(\.[a-z]+)$/) ) + '-on' + src.match(/(\.[a-z]+)$/)[0];
   },

   oldimage: function( src )
   {
      return src.replace(/-on\./, '.');
   }
};