function createNo()
{
	var rdn1=Math.floor(Math.random()*11);
	var rdn2=Math.floor(Math.random()*11);
	document.getElementById("rdn1").innerHTML=rdn1;
	document.getElementById("rdn2").innerHTML=rdn2;
}

function checkData() {
  var errorMessage = "";
  if (document.signUp.firstName.value == '')
  {
	errorMessage = "Your first name is empty!\r\n";
  }
  if (document.signUp.email.value == '')
  {
	errorMessage += "Your email is empty!\r\n";
  }
  else if (!checkEmailFormat(document.signUp.email.value))
  {
	errorMessage += "Your email format is wrong!\r\n";
  } 
  if (document.signUp.keyTakeAway.value == ''||document.signUp.keyTakeAway.value == ''||document.signUp.keyTakeAway.value =='Please be as specific as possible, otherwise we cannot quote. Number of Teeth impacted? Work required? Location of the Teeth? Thank you.')
  {
	errorMessage += "What help do you need?\r\n";
  }
/*  if(document.signUp.keyTakeAway.value.indexOf('http:') !=-1)
  {
  	errorMessage += "???\r\n"
  }
*/  if (document.signUp.answer.value != parseInt(document.getElementById("rdn1").innerHTML)+parseInt(document.getElementById("rdn2").innerHTML))
	errorMessage += "Your answer is wrong\r\n";
  
  if ( errorMessage != '')
  {
      errorMessage = "Error Messages:\r\n" + errorMessage;
	  alert(errorMessage);
	  return false;
  } 
  else
  {
//  	document.signUp.submit();
	show=false;
	return true;
  }
}