title: How to reverse the effect of toString() for a number?
body: <p>In my website that I am making, I needed to get the scrollLeft value (jQuery, of course) and I needed to get rid of the "px" labeling. So I changed the number into a string and go rid of the "px" labeling like this: <code>var widththis=widther.replace(/[px]/g, "");</code> So I found out that if I add this number to another, it will appear like this: <code>1001366</code> Is there any way to reverse the effect of toString effect? I would love to be able to do this is plain javascript, but jQuery would be fine too. Please also include an example as well if possible. 
  <br><br>Thank you in advanced!</p>