JavaScript - методы вызова

<div id="demo">JavaScript can change HTML content.</div>
<button type="button" onclick="document.getElementById('demo').innerHTML = 'Hello JavaScript!'">Click Me!</button>
JavaScript can change HTML content.
Click Me!
<a href="#" onclick="alert('Hello JavaScript!'); return false;">JavaScript can change HTML content</a>
JavaScript can change HTML content
<div id="demo3">JavaScript can change HTML content</div>
<a href="#" onclick="document.getElementById('demo3').innerHTML = 'Hello JavaScript!'">Click Me!</a>
JavaScript can change HTML content
Click Me!
<div id="demo4">JavaScript can change HTML content</div>
<input type="button" value="Click Me!" onclick="fun4()" />
<script type="text/javascript">
function fun4(){
document.getElementById("demo4").innerHTML="Hello JavaScript!";
}
</script>
JavaScript can change HTML content



<div id="demo5"></div>
<script>
document.getElementById("demo5").innerHTML = 5 + 6;
</script>