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// Prepare new Miva ToggleDetails.Go function with slide up/down functionality
	var GoSlide = function() {
		if( this.trigger.checked ){
			this.addEvent( this.trigger.form, 'submit', ToggleDetails.copyFields );
			$(this.secondary_fields).slideUp();
		} else {
			this.removeEvent( this.trigger.form, 'submit', ToggleDetails.copyFields );
			$(this.secondary_fields).slideDown();
		}
	};
// Change the default behavior of the ToggleDetails function to slide up/down
	window.ToggleDetails.go = GoSlide;
	$('#shipping_fields').css('visibility','visible');