$(document).ready(function() { 
    PEPS.rollover.init();
});

//Image Rollover
PEPS = {};
PEPS.rollover =
{
    init: function() {
        this.preload();
        $(".rollover").hover(
         function() { $(this).attr('src', PEPS.rollover.newimage($(this).attr('src'))); },
         function() { $(this).attr('src', PEPS.rollover.oldimage($(this).attr('src'))); }
      );
    },
    preload: function() {
        $(window).bind('load', function() {
            $('.rollover').each(function(key, elm) { $('<img>').attr('src', PEPS.rollover.newimage($(this).attr('src'))); });
        });
    },
    newimage: function(src) {
        return src.substring(0, src.search(/(\.[a-z]+)$/)) + '_r' + src.match(/(\.[a-z]+)$/)[0];
    },
    oldimage: function(src) {
        return src.replace(/_r\./, '.');
    }
};