function validateForm()
{
if (!document.test.howhear1.checked && !document.test.howhear2.checked && !document.test.howhear3.checked && !document.test.howhear4.checked && !document.test.howhear5.checked && !document.test.howhear6.checked && !document.test.howhear7.checked && !document.test.howhear8.checked && !document.test.howhear9.checked)
{
alert("Please tell us where you heard about us.");
return false;
}
return true;
}