function validateLogin()
{
	var errors = "";
	var focusfield = "";
	
	if(trim(document.frmlogin.memberid.value) == '')
	{
		errors = errors + "- Please enter membership No / Username" + "\n";
		if (focusfield == '') focusfield = "memberid";		
	}
	if(trim(document.frmlogin.pin.value) == '')
	{
		errors = errors + "- Please enter PIN / Password" + "\n";
		if (focusfield == '') focusfield = "pin";		
	}
	if(errors.length > 0) 
	{
		alert("Please make sure you complete all fields:\n" + errors);
		document.getElementById(focusfield).focus();	
		return false;
	}	
	else {return true;}
}