cvToggle.js

jQuery.fn.extend({
	cvToggle: function( duration , easing ) {
	
	  easing = typeof easing !== 'undefined' ? easing : 'swing';
	
	  if( this.css('opacity') == '0' ) {
	
	    this.slideToggle({
	      duration: 'fast',
	      easing: easing,
	      complete: function(){
	
	        jQuery(this).animate({
	          opacity: 1
	        }, duration);
	      }
	    });
	
	  } else {
	
	    this.animate({
	      opacity: 0,
	    }, duration, function(){
	
	      jQuery(this).slideToggle({ duration: 'fast', easing: easing });
	    });
	
	  }
	
	}
	
});