// barra de acessibilidade
// tamanho da fonte
var letra = {
	size:12,
	aumentar:function() {
		if (this.size <= 13) {
			this.size++;
			document.body.style.fontSize = this.size+'px';
		}
	},
	diminuir:function() {
		if ( this.size >= 12 ) {
			this.size--;
			document.body.style.fontSize = this.size+'px';
		}
	}
}

// contraste
function switchStyleSheet(stylename, settings) {
	$('link[@rel*=stylesheet]').each(function(){
		this.disabled = true;
		if (jQuery(this).attr('href') == settings.styledir + stylename) this.disabled = false;
		
		if (settings.savecookie == true){
			jQuery.cookie('style', stylename, 365);
		}
	});
}