function checkform()
{
//event
  if(form1.tevent.value == "")
  {
  alert("Please enter an Event");
  form1.tevent.focus();
  return false;
  }
  
//date
  if(form1.tselect1.value == "")
  {
  alert("Please select a Date");
  form1.tselect1.focus();
  return false;
  }  
  
//member name
  if(form1.tmembername.value == "")
  {
  alert("Please enter BBG Member's Name");
  form1.tmembername.focus();
  return false;
  }
 
//terms and conditions
  if(form1.tcheckbox.checked == false)
  {
  alert("You have to agree with the Terms & Conditions");
  form1.tcheckbox.focus();
  return false;
  }
}