title: jQuery calculation
body: <p>I am new to jQuery and I would like to know how to accomplish a simple calculation based on the value selected in the picklist. please see the below screen shot I put on ImageShack for reference.</p>
  
  <p><a href="http://img707.imageshack.us/img707/5216/imagebg.png" rel="nofollow noreferrer">http://img707.imageshack.us/i/imagebg.png/ http://img707.imageshack.us/img707/5216/imagebg.png</a></p>
  
  <p>I want to be able to show the result of the calculation in the text box at the right, If I enter number 2 on the text box on the left side and press Tab then the value of the text box on the right will update. 
  If I can get to know how that works then I can take it from there.
  thank you very much in advance.</p>