forms

js/script.js

function funMake() {
for(var i=0; i<document.forms.length; i++) {
document.getElementById('d1').innerHTML += document.forms[i].name + '<br />';
}
}

function funMake() {
for(var i=0; i<document.forms.length; i++) {
document.getElementById('d1').innerHTML += document.forms[i].name + '<br />';
}
}

index.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<script src="js/script.js"></script>
</head>
<body>
<form action="#" name="form0">
<input type="text" name="txt0" />
  
<input type="submit" name="perform" value="OK" />
</form>
<br />
<form action="#" name="form1">
<input type="text" name="txt0" />
  
<input type="submit" name="perform" value="OK" />
</form>
<br />
<div id="d1"></div>
<script>
funMake();
</script>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<script src="js/script.js"></script>
</head>
<body>
<form action="#" name="form0">
<input type="text" name="txt0" />
  
<input type="submit" name="perform" value="OK" />
</form>
<br />
<form action="#" name="form1">
<input type="text" name="txt0" />
  
<input type="submit" name="perform" value="OK" />
</form>
<br />
<div id="d1"></div>
<script>
funMake();
</script>
</body>
</html>