function validate_required(field,alerttxt){
    with (field){
        if (value==null||value==""||value=="your Name"||value=="fill me, please"){
            value = alerttxt;
            select();
            return false;
        }else{
            return true;
        }
    }
}

window.addEvent('domready', function() {
	$('newsletter').addEvent('submit', function(evt) {
		evt.stop();
		var _self = this;
		if($('chk').value == "email")
		{
			this.set('send', {
					onComplete: function(response) { 
							if(response.indexOf("Thank") >= 0)
							{
								// nl subscription went fine
								$('output').set('html', '');
								$('output').set('html', response);
								setTimeout("$('output').set('html', '')", 5000);
							} else {
								// an error occoured			
								$('output').set('html', '');
								btn_back = '<input type="button" id="btn_back" name="btn_back" onClick="todoAccordion.display(6);" value="back" />';
								$('output').set('html', response+btn_back);
			
								setTimeout('todoAccordion.display(6)', 5000);
								setTimeout("$('output').set('html', '')", 5001);
							}
							todoAccordion.display(0);
					}
			});
			//Send the form.
			this.send();
		}
	});
});