(function(jQuery){  
    
    jQuery.fn.simpleRollOver = function( ) {
        this.each(function(){
            var parent = jQuery(this).parent();
            jQuery(this).hover(function(e) {
                parent.attr("rel", jQuery(this).attr( "src" ) );
                jQuery(this).attr( "src", "http://www.afar.org/images/frontend/content/circle.png");
            }, function() {
                jQuery(this).attr( "src", parent.attr( "rel" ) );
            });            
        });
    }

})(jQuery);