function validate(){
	var emailval = document.forms.register.email.value;
	var unregval = document.forms.register.unregister.checked;
	
	if (emailval.indexOf("@")==-1 || 
		emailval.indexOf(".")==-1 || 
		emailval.indexOf("\'")>1 || 
		emailval.indexOf("\"")>1 || 
		emailval.indexOf("\(")>1 || 
		emailval.indexOf("\)")>1 || 
		emailval.indexOf("\%")>1 || 
		emailval.indexOf("\$")>1 || 
		emailval.indexOf("\*")>1 || 
		emailval.indexOf("\|")>1 || 
		emailval.indexOf("\\")>1 || 
		emailval.indexOf("\/")>1 || 
		emailval.indexOf("\[")>1 || 
		emailval.indexOf("\]")>1 || 
		emailval.indexOf("\;")>1 || 
		emailval.indexOf("\:")>1 || 
		emailval.indexOf("\>")>1 || 
		emailval.indexOf("\<")>1 || 
		emailval.indexOf("\?")>1 || 
		emailval.indexOf("\&")>1 || 
		emailval.indexOf("\^")>1 || 
		emailval.indexOf("\=")>1 || 
		emailval.indexOf("@.")>1 || 
		emailval.indexOf(".@")>1 || 
		emailval.indexOf(" ")>1)
	{
		alert("Please enter a valid email address.");
		document.forms.register.email.focus();
		return false;
	}
	if(unregval==false){
		var conf = confirm("Please confirm you would like to receive updates via email");
	} else {
		var conf = confirm("Please confirm you would like to stop receiving updates via email");
	}
	return (conf)?(true):(false);
};

function clearinput(obj, str){
	var inval = obj.value;
	if(inval==str){
		obj.value = "";
	}
};

function resetinput(obj, str){
	var inval = obj.value;
	if(inval==""){
		obj.value = str;
	}
};