<html>
<body>
<button onclick="getTotal();">Get total script tags</button>
<script language="JavaScript">
function getTotal() {
var m = document.scripts.length;
alert(m);
}
</script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
</body>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
<script language="JavaScript"></script>
</html>