function validatealumniform(formname) {
	var sendername = document.getElementById('sendername').value;
	var senderemail = document.getElementById('senderemail').value;
	var message = document.getElementById('message').value;
	var submitform = true;
	if (sendername=='') {
		submitform = false;
	}
	if (message=='') {
		submitform = false;
	}
	if (senderemail=='') {
		submitform = false;
	}
	if (isvalidemail(senderemail)) {
	} else {
		submitform = false;
	}
	if (submitform) {
	} else {
		alert('All fields are mandatory');
		return false;
	}
}
function isvalidemail(strEmail){
	  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
		if (strEmail.search(validRegExp) == -1) 
	   {
		  return false;
		} 
		return true; 
}
function renderlanguage(itemvalue) {
  if (itemvalue.options[itemvalue.selectedIndex].value.substr(0,1)=='-') {
	window.location=itemvalue.options[itemvalue.selectedIndex].value.substr(1,itemvalue.options[itemvalue.selectedIndex].value.length);
  } else {
	window.location='/default.asp?l='+itemvalue.options[itemvalue.selectedIndex].value;
  }
}
function validateform() {
	var errors='';
	var fullname = document.getElementById('fullname').value;
	var emailaddress = document.getElementById('emailaddress').value;
	var subject = document.getElementById('subject').value;
	var message = document.getElementById('message').value;
	if (fullname=='') {
		errors=errors+'Please fill in your name\n';
	}
	if ((emailaddress=='')||(!isvalidemail(emailaddress))) {
		errors=errors+'Please fill in your email address\n';
	}
	if (subject=='') {
		errors=errors+'Please fill in your subject\n';
	}
	if (message=='') {
		errors=errors+'Please fill in your message\n';
	}
	if (errors=='') {
		document.getElementById('contactform').submit();
	} else {
		alert(errors);
	}
}
function renderalumnibyyear(id,ysel) {
	var currentyear = ysel.options[ysel.selectedIndex].value;
	var alumnis = document.getElementsByName('alumniperson');
	if (currentyear==0) {
		window.location='?id='+id+'&y=all';
	} else {
		window.location='?id='+id+'&y='+currentyear;
	}
	/*
	if (currentyear==0) {
		for (x=0;x<alumnis.length;x++) {
			alumnis[x].style.display='';
		}
	} else {
		for (x=0;x<alumnis.length;x++) {
			if (alumnis[x].id.substring(0,4)==currentyear) {
				alumnis[x].style.display='';
			} else {
				alumnis[x].style.display='none';
			}
		}	
	}
	*/
}
function displaysubmenu() {
  if (document.getElementById('submenu').style.visibility=='visible') {
	document.getElementById('submenu').style.visibility='hidden';
  } else {
	document.getElementById('submenu').style.visibility='visible';
  }
}