５．関数｛function文｝ <21p>
<html>
<head>
<title>function03</title>
<script language="JavaScript">
<!--
function printname(name){
name=prompt("名前を入力してください"," ");
document.write("<h1>はじめまして",name,"さん</h1>");
}
//-->
</script>
</HEAD>
<BODY>
<script language="JavaScript">
<!--
printname(name)
//-->
</script>
</BODY>
</body>
</html>