function check()
{
 if ((addrForm.firstname.value == "") || (addrForm.lastname.value == ""))
 {
  alert("Please enter your first and last name.");
  return false;
 }
 if ((addrForm.address.value == "") || (addrForm.city.value == "") || (addrForm.state.value == "") || (addrForm.zip.value == ""))
 {
  alert("Please provide a complete address.");
  return false;
 }
 if (!addrForm.email.value == "")
 {
  emaddr = addrForm.email.value;
  emval = new String (emaddr);
  emhasat = emval.lastIndexOf("@");
  emhasdot = emval.lastIndexOf(".");
  if ((emhasat == -1) || (emhasdot == -1))
  {
   alert("Please check your email address. It doesn't look complete.");
   return false;
  } else if (emhasat > emhasdot)
   {
    alert("Please check your email address. The format doesn't look correct.");
    return false;
   }
 }
 return true;
}

function updateAmt(noofcopies)
{
var dollars = noofcopies * 5;
amount.innerHTML="<input type='hidden' name='amt' value='" + dollars + "'>$ " + dollars + ".00";
}

function popup()
{
 var myWidth;
 var myHeight;
	
 myWidth = (window.screen.width/2) - (200 + 10);
 myHeight = (window.screen.height/2) - (27 + 50);
 var myPopUp = window.open("addrformhelp.htm","PCName","toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=400,height=225,left=" + myWidth + ",top=" + myHeight + ",screenX=" + myWidth + ",screenY=" + myHeight);
 myPopUp.focus();

}