<!--
function functionname(parameter-list) {
statements
}
//-->
</script>
<script type = "text/javascript">
<!--
function sayHello() {
alert("Hello there");
}
//-->
</script>
<html>
<head>
<script type = "text/javascript">
function sayHello() {
document.write ("Hello there!");
}
</script>
</head>
<body>
<p>Click the following button to call the function</p>
<form>
<input type = "button" onclick = "sayHello()" value = "Say Hello">
</form>
<p>Use different text in write method and then try...</p>
</body>
</html>
<html>
<head>
<script type = "text/javascript">
function sayHello(name, age) {
document.write (name + " is " + age + " years old.");
}
</script>
</head>
<body>
<p>Click the following button to call the function</p>
<form>
<input type = "button" onclick = "sayHello('Zara', 7)" value = "Say Hello">
</form>
<p>Use different parameters inside the function and then try...</p>
</body>
</html>
<html>
<head>
<script type = "text/javascript">
function concatenate(first, last) {
var full;
full = first + last;
return full;
}
function secondFunction() {
var result;
result = concatenate('Zara', 'Ali');
document.write (result );
}
</script>
</head>
<body>
<p>Click the following button to call the function</p>
<form>
<input type = "button" onclick = "secondFunction()" value = "Call Function">
</form>
<p>Use different parameters inside the function and then try...</p>
</body>
</html>
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