Problem with Ajax post

You for sure need to remove the "v" at the end of this line in PainDiagram.js

canvas.addEventListener('touchcancel', ev_canvas, false);v <<<<<

I cannot test until you fix the two errors I have found

Error 2

return checkdate(document.form.dob.value);

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is sending a string instead of field. Change to 

return checkdate(document.form.dob);

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to match

if (returnval==true) input.select()

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so you can change 

function checkdate(inputField) { // change to field
  var input = inputField.value;

  var validformat = /^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
  var returnval = true
  if (!validformat.test(input))
    alert("Invalid Date Format. Format: (mm/dd/yyyy) \nPlease correct and submit again.")
  else { //Detailed check for valid date ranges
    var monthfield = input.split("/")[0]
    var dayfield = input.split("/")[1]
    var yearfield = input.split("/")[2]
    var dayobj = new Date(yearfield, monthfield - 1, dayfield)
    if ((dayobj.getMonth() + 1 != monthfield) || (dayobj.getDate() != dayfield) || (dayobj.getFullYear() != yearfield))
      alert("Invalid Day, Month, or Year range detected. \nPlease correct and submit again.")
    else
      returnval = false
  }
  if (returnval == true) inputField.select(); // here we select the field
  return returnval
}

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Lastly I think you meant 

if (!returnval) inputField.select();

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No problem. You still will need my change to make the code not give errors. There is no select method of a string.

It is working if you ignore the console error and that the error field is not selected ;)

It’s likely still giving a console error. If you do not care you do not have to do anything - I would fix it had it been my site - anyway enjoy.

I cannot verify on my mobile. No big deal.