function ExplorerFix() {
for (a in document.links) document.links[a].onfocus = document.links[a].blur; }
if (document.all) {
document.onmousedown = ExplorerFix; }

function closewin()
{
window.close();
}

function checkemail(eaddr)
{
  if (eaddr == '') 
  {
  alert ('You have to enter your e-mail address')
  return -1;
  }
  if (eaddr.indexOf(" ") != -1) 
  {
  alert ('Your e-mail address should not contain spaces !')
  return -1;
  }
  if (eaddr.indexOf(",") != -1) 
  {
  alert ('Your e-mail address should not contain commas !')
  return -1;
  }
  if (eaddr.indexOf("'") != -1) 
  {
  alert ('Your e-mail address should not contain quotes !')
  return -1;
  }
  if (eaddr.indexOf('"') != -1) 
  {
  alert ('Your e-mail address should not contain quotes !')
  return -1;
  }
  if (eaddr.indexOf(".") == -1) 
  {
  alert ('Your e-mail address does not contain a valid domain name !')
  return -1;
  }
  if (eaddr.indexOf("@") == -1) 
  {
  alert ('Your e-mail address should contain the @ sign !')
  return -1;
  }
return 0;
}


function checkform() 
{
if (checkemail(document.mainform.email.value) != -1)
{
  if (document.mainform.message.value == '') 
  {
  alert ('You have to enter a message')
  return;
  }
  if (document.mainform.name.value == '') 
  {
  alert ('You have to enter your name')
  return;
  }
  if (document.mainform.address.value == '') 
  {
  alert ('You have to enter your address')
  return;
  }
  document.mainform.submit()
}
}