window.addEvent('domready', function(){

	// Tab Control  	
	var bioSlide = new Fx.Slide('biography');
	var decSlide = new Fx.Slide('decisions');
	var semSlide = new Fx.Slide('seminars');
	decSlide.hide();
	semSlide.hide();
		
	$$('.tab_biography').addEvent('click', function(){
	    if (this.hasClass('off') == true){
	        decSlide.slideOut();
	        semSlide.slideOut();
	        this.removeClass('off');
	        this.addClass('on');
	        $$('.tab_decisions').removeClass('on');
	        $$('.tab_decisions').addClass('off');
	        $$('.tab_seminars').removeClass('on');
	        $$('.tab_seminars').addClass('off');
	        bioSlide.slideIn();
	    }
	});
	
	$$('.tab_decisions').addEvent('click', function(){
	    if (this.hasClass('off') == true){
	        bioSlide.slideOut();
	        semSlide.slideOut();
	        this.removeClass('off');
	        this.addClass('on');
	        $$('.tab_biography').removeClass('on');
	        $$('.tab_biography').addClass('off');
	        $$('.tab_seminars').removeClass('on');
	        $$('.tab_seminars').addClass('off');
            decSlide.slideIn();
	    }
	});
	
	$$('.tab_seminars').addEvent('click', function(){
	    if (this.hasClass('off') == true){
	        bioSlide.slideOut();
	        decSlide.slideOut();
	        this.removeClass('off');
	        this.addClass('on');
	        $$('.tab_biography').removeClass('on');
	        $$('.tab_biography').addClass('off');
	        $$('.tab_decisions').removeClass('on');
	        $$('.tab_decisions').addClass('off');
            semSlide.slideIn();
	    }
	});

});