function MTval(entered, alertbox)
{
with (entered)
{
if (value==null || value=="")
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}

function checkK(thisform)
{
with (thisform)
	{
	if (MTval(email,"Please enter your email address.")==false) {email.focus(); return false;};
	if (MTval(teacher_name,"Please enter your name.")==false) {teacher_name.focus(); return false;};
	if (MTval(school,"Please enter which school this is for.")==false) {school.focus(); return false;};
	}
}