function showSubMenu(submenu) {
	document.getElementById(submenu).style.display='block';
	document.getElementById(submenu).parentNode.onmouseout = function() { document.getElementById(submenu).style.display='none';};
}

function validateEmail(email) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   if(reg.test(email) == false) {
     // alert('Invalid Email Address');
      return false;
   }
   else{
	   return true;
   }
}

function chkForm(){
	//assumes all forms have the name and email addreses with the same ids
	
	var Fname = document.getElementById('First_name');
	var Lname = document.getElementById('Last_name');
	var email = document.getElementById('Email');
	if (Fname.value == ""){
		Fname.focus();
		alert("We need your first name please.");
		return false;
	}
	if (Lname.value == ""){
		Lname.focus();
		alert("We need your last name please.");
		return false;
	}
	if (!validateEmail(email.value)){
		email.focus();
		alert("We need your email address please.");
		return false;
	}
	return true;		
}