var blog = document.getElementById('blog');

function textogrande() {

	document.getElementById('interior-col-izq').style.fontSize = '1.7em';
	document.getElementById('interior-col-der').style.fontSize = '1.7em';

	if (blog) { 

		var lis = blog.getElementsByTagName('li');

		for (i = 0;i < (lis.length -1) ;i++ ) {

			lis[i].style.fontSize = '1.2em';

		}

	};

}
function textochico() {

	document.getElementById('interior-col-izq').style.fontSize = '1.3em';
	document.getElementById('interior-col-der').style.fontSize = '1.3em';

	if (blog) { 

		var lis = blog.getElementsByTagName('li');

		for (i = 0;i < lis.length ;i++ ) {

			lis[i].style.fontSize = '1em';

		};

	};
	
}
var x = readCookie('sizes');

if (x == 'grande') {
	textogrande();	
} else {
	textochico();
};

document.getElementById('herr-letra').onclick = function () {

	var x = readCookie('sizes');

	if (x == 'grande') {

		textochico();
		createCookie('sizes','chico',7)

	} else {

		textogrande();
		createCookie('sizes','grande',7)

	}

}