zhurchik,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</head>
<body>
<script>
document.body.innerHTML.replace(/<scri[\s\S]*?>([\s\S]*?)<\/scri/mg,function(str, p1)
{
alert(p1);//Выводим полученный результат
return "";
});
</script>
</body>
</html>