title: Loop through all text boxes in a form using jQuery
body: <p>I have a form which is laid out like a spreadsheet.</p>
  
  <p>I want to validate the text in each textbox and if it's not numeric, change the background of the textbox and display a message.</p>
  
  <p>I can do everything except for the looping part.</p>
  
  <p>I'm guessing it's a for...each statement?</p>