function ordercheck() {

 if (document.getElementById("order_name").value==""){
  alert("Please enter your name."); 
  document.getElementById("order_name").select();document.getElementById("order_name").focus();}
 else
  if (document.getElementById("order_address").value==""){
   alert("Please enter your street address."); document.getElementById("order_address").select();document.getElementById("order_address").focus();}
 else
  if (document.getElementById("order_city").value==""){
   alert("Please enter your city."); document.getElementById("order_city").select();document.getElementById("order_city").focus();}
 else
  if (document.getElementById("order_prov").value==""){
   alert("Please enter your province/state."); document.getElementById("order_prov").select();document.getElementById("order_prov").focus();}
 else
  if (document.getElementById("order_prov").value==""){
   alert("Please enter your province/state."); document.getElementById("order_prov").select();document.getElementById("order_prov").focus();}
 else
  if (document.getElementById("order_zip").value==""){
   alert("Please enter your postal/zip code."); document.getElementById("order_zip").select();document.getElementById("order_zip").focus();}
else
   var emailid = document.getElementById("order_email");
   var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    if (!filter.test(emailid.value)) {
    alert("Please enter your valid email address."); emailid.select();emailid.focus();}
 else
  if (document.getElementById("order_HowDidYouHear").value==""){
   alert("Please tell us how you heard about the One Love DVD."); document.getElementById("order_HowDidYouHear").select();document.getElementById("order_HowDidYouHear").focus();}
 else
  document.getElementById("order_form").submit();
 }