function checkForm(){

if (document.forms[0].edate.value.length == 0){
   alert('Please enter a event date.');
   document.forms[0].edate.focus();
   return false;
}
if (document.forms[0].event.value.length == 0){
   alert('Please enter a event title.');
   document.forms[0].event.focus();
   return false;
}
if (document.forms[0].details.value.length == 0){
   alert('Please enter event details.');
   document.forms[0].details.focus();
   return false;
}

return true;
}