function resizeText(multiplier) {
    var p = document.getElementsByTagName('p');
    var h1 = document.getElementsByTagName('h1');
    var span = document.getElementsByTagName('span');
    for (var i = 0; i < p.length - 2; i++) {
        p[i].style.fontSize = multiplier + "pt";
        p[i].style.lineHeight = multiplier * 2 + "px";
        var a = p[i].getElementsByTagName('a');

        if (a.length > 0) {
            for (var h = 0; h < a.length; h++) {
                a[h].style.fontSize = multiplier + "pt";
            }
        }
    }
    for (var j = 0; j < h1.length; j++) {
        h1[j].style.fontSize = multiplier + 1 + "pt";
    }
    for (var k = 2; k < span.length; k++) {
        span[k].style.fontSize = multiplier + "pt";
    }
}