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<!Doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Tabliczka 2</title>
<script>
function tablica(){
var liczba=parseInt(form1.f1.value);
document.write("<table border=1><td></td>");
for(var i=1;i<=liczba;i++){
document.write("<th>"+i+"</th>");
}
		for(var k=1;k<=liczba;k++){
		document.write("<tr><th>"+k+"</th>");

				for(var j=1;j<=liczba;j++){
			document.write("<td>"+j*k+"</td>");
				}

			document.write("</tr>");
		}
	document.write("</table>");
}
</script>
</head>
<body>
<form name="form1">
<input type="text" id="f1">
<button onClick="tablica()">Policz</button>
</form>
</body>
</html>