//Validate Emails through regex
function is_email_valid(email) { 
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(email)) {
		return false;
	}
	return true;
}

//Sets a cookie if the user has properly completed the request form
var retValuewp = false;
function validate_whitepaper_request( form ){
	var email = form.email.value.strip();
	var last = form.last.value.strip();
	var first = form.first.value.strip();
	var company = form.company.value.strip();
	if (email == '' || last == '' || first == '' || company == '') {
		alert( 'Please complete the email, company, last, and first names.' );
	} else {
		if( is_email_valid(email) ){
			createCookie('whitepaper_approval',1,1); //set for 1 day
			retValuewp = true;
		} else {
			alert( 'Please enter a valid email address.' );
		}
	}
}