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Duvida Com Javascript?

Guest maxxuser


Guest maxxuser

Estou com um problema:quero que o usuario do site digite o tamanho do paragrafo no campo texto (id="cmp") e ao clicar em 'Change font size', o tamanho o texto do 'p1' seja o valor digitado. alguém pode me ajudar a resolver?




function toggle() {

var el = document.getElementById('p1');

if ( el.style.fontFamily != 'Harry P, arial' ) {

el.style.fontFamily = 'Harry P, arial';


else {

el.style.fontFamily = 'Time News Roman';




<script>function mudabg(){

var mudar


document.bgColor = mudar




<script>function mudatam(){

document.getElementByID('p1').style.fontSize = document.getElementsByID('cmp').value




<body><form name="form1"><input type="text" id="cmp"></form>

<input type="button" onclick="toggle()" value="Change font" />

<input type="button" onclick="mudatam()" value="Change font size" />

<input type="button" onclick="mudabg()" value="Change bgColor" />

<p id="p1" style="font-size: 2em">This is an example paragraph.</p>



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