function swapNavSection(vSection, vJot) {
		var navSection = vSection;
		var navIcon = vJot;
		if ($(navSection).style.display == 'block') {
			$(navSection).style.display = 'none';
			$(navIcon).src = 'http://www.farecompare.com/editorial/resources/images/left-rail/green_button.gif'; 
		}
		else {
			$(navSection).style.display = 'block';
			$(navIcon).src = 'http://www.farecompare.com/editorial/resources/images/left-rail/arrow_curve.gif';
		}
	}

//this function needs prototype to work
function navMailSubmit(formName) {
var theForm = formName;
var email = $(theForm).email.value;

	if (email.length == 0) {
		alert("Please specify a valid email address.");
		return;
	}

	var tokens = email.split('@');
	if (tokens.length != 2) {
		alert("Please specify a valid email address. (i.e. bob@farecompare.com)");
		return;
	}

	var username = tokens [0];
	var domainname = tokens [1];
	if (domainname.indexOf ('.') <= 0 || domainname.indexOf('.') == domainname.length-1) {
		alert("Please specify a valid email address. (i.e. bob@farecompare.com)");
		return;
	}
	if (username.indexOf ('..') >= 0 || domainname.indexOf ('..') >= 0 ) {
		alert("Please specify a valid email address. (i.e. bob@farecompare.com)");
		return;
	}

	document.location = "http://www.farecompare.com/alerts/alert-signup.html?email=" + email

}