// Check for common emails
function commonEmailCheck()
{
var formEmaiL=document.forms["trialform"]["email"].value;
var formEmail=formEmaiL.toLowerCase();var atEmail=formEmail.indexOf("@")+1;
var endEmail=formEmail.length;
var emailTLD=formEmail.slice(atEmail,endEmail);
var badEmailTLDs= new Array('aol.com','yahoo.com','gmail.com','hotmail.com','msn.com','earthlink.com','mindspring.com','netzero.com','q.com');
	for(var i=0, ii=badEmailTLDs.length;i < ii;i++)
	{
		if(emailTLD==badEmailTLDs[i])
		{
		document.forms["trialform"]["email"].value=prompt("Please enter an institutional (non-free) email");
		return false;
		}
	}
}