// JavaScript Document
function checkElement(elementId) {
	var el = document.getElementById(elementId);
	var ret = (typeof(el) == 'object' && el != null) ? true : false;
    return ret;
}
function init() {
    if(checkElement('email')) {
		var oEml = document.getElementById('email');
		oEml.onfocus=function(){oEml.value='';}		
	}
}
function deleteFromNewsletter() {
    if(checkElement('ndel')) {
		var oEml = document.getElementById('ndel');
		oEml.value='del';	
	}
}
// if the browser can deal with DOM, call the function onload		
if(document.getElementById && document.createTextNode) {
	window.onload=init;
}