var testresults

function checkemail(){
 var str=document.feedback.Email.value
 var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
 if (filter.test(str))
  testresults=true
 else{
  alert("Please enter a valid Email Address!")
  testresults=false
 }
 return (testresults)
}

function checkcontactform()
{
 if (document.feedback.Name.value=="")
 {
  alert("Please enter your name");
  return false;
 }
 else if (document.feedback.code.value=="")
 {
  alert("Please enter the 4-letter code");
  return false;
 }
 else
 {
  return checkemail();
 }
}