function intOnly(i) {
	if (document.subscribe.SubscriberEmail.value=="Enter your email address"){
		document.subscribe.SubscriberEmail.value = "";
	}
}
function clickIt(){

	{
		if (document.subscribe.SubscriberEmail.value==""){ 
		alert("Please enter the Email address!");
		document.subscribe.SubscriberEmail.focus();
                    return false; 
         }
		else {var x = document.subscribe.SubscriberEmail.value;
		var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if (!filter.test(x)){
		alert('Invalid email address');
		document.subscribe.SubscriberEmail.focus();
		return false; 
		}
		}
	}	
  	
 return true;
}

function EnsureValue(field){
	//change field colour if no value present
	if (field.value==""){
		field.style.background = '#E4A8A5';
		field.style.border = '1px solid #BE2B24';
		return false;}
	else{
		field.style.background = '#FFF';
		field.style.border = '1px solid #7F9BB9';}
	
return true;}