Scraping a Javascript Var?

Is there any way to scrape a javascript variable set in the source of another page?

For example:

<script language=”JavaScript”>
<!– //
var dTotal = “158997”;
var currencysymbol = “$”;
// –>
</script>

I want to scrape the value of dTotal that is set here explicitly in the HTML.

https://www.ads-software.com/extend/plugins/wp-web-scrapper/