function toggle(obj){
	group = eval("document.forms[0]."+obj.name);
	for(i=1;i<=group.length;i++){
		itm = document.getElementById(obj.name+"a"+i);
		itm.parentNode.className = '';
	}
	obj.parentNode.className= 'selected';
}

function verify(){
	obj = document.getElementById("input_email");
	emailaddress = obj.value;
	var emailRegxp = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
	if (emailRegxp.test(emailaddress) != true){
		alert("Please specify a valid Email address in order to continue.");
		return false;
	}else{
		return true;
	}
}

function clearanswers(){
	 var radios = $$('input[type=radio]');
	 radios.each(function(el){
		 //console.log(el);
		 //console.log(el.getParent());
		 el.checked = false;
		 el.getParent().removeClass('selected');
	 });
}