;(function($) {
	var defaults = {
		mouseOutOpacity:   0.67,
		mouseOverOpacity:  1.0,
		fadeSpeed:         'fast',
		exemptionSelector: '.selected'
	};

	$.fn.opacityrollover = function(settings) {
		// Initialize the effect
		$.extend(this, defaults, settings);

		var config = this;

		function fadeTo(element, opacity) {
			var $target = $(element);
			
			if (config.exemptionSelector)
				$target = $target.not(config.exemptionSelector);	
			
			$target.fadeTo(config.fadeSpeed, opacity);
		}

		this.css('opacity', this.mouseOutOpacity)
			.hover(
				function () {
					fadeTo(this, config.mouseOverOpacity);
				},
				function () {
					fadeTo(this, config.mouseOutOpacity);
				});

		return this;
	};
})(jQuery);


function nivo(ni3,ni2,ni1,ni4) {
document.write('<a  class="gra" hre' + 'f=\"mai' + 'lto:' + ni1 + ni2 + '@' + ni3 + ni4 + '\">' + ni1 + ni2 + '@' + ni3 + ni4 + '</a>');
}