function setUpNL() {
	var nlBlock = document.getElementById("nl-signup") ;
	var nlInputs = nlBlock.getElementsByTagName("input") ;
	for (var i=0; i<nlInputs.length; i++) {
		addEvent(nlInputs[i], "focus", selectNLField, false) ;
		addEvent(nlInputs[i], "blur", exitNLField, false) ;
		addClass(nlInputs[i], "defaultVal") ;
		nlInputs[i].value = nlInputs[i].title ;
	}
}

function selectNLField(e) {
	var target = getTarget(e) ;
	if (classContains (target, "defaultVal")) {
		stripClass(target, "defaultVal") ;
		target.value = "" ;
	}
}

function exitNLField(e) {
	var target = getTarget(e) ;
	if (target.value == "") {
		addClass(target, "defaultVal") ;
		target.value = target.title ;
	}
}