function ValidateForm()
{
	if(document.getElementById('FirstName').value=='')
		{alert('Please enter your first name before submitting the form');
		 return false;
		}
	if(document.getElementById('LastName').value=='')
		{alert('Please enter your last name before submitting the form');
		 return false;
		}
	if(document.getElementById('Email').value=='')
		{alert('Please enter your email address before submitting the form');
		 return false;
		}
	if(isNaN(document.getElementById('ClassYear').value))
		{alert('Please enter a valid class year (yyyy).');
		 return false;
		}
	var reEmail = /^.+\@.+\..+$/
	if (document.getElementById('Email').value!='')
		{   if (!reEmail.test(document.getElementById('Email').value))
			{alert('Please enter a valid email address before submitting the form');
			return false;
			}
		}
	return true;
}