function check() 
{
	var msg = "";

	if (document.newsletter.email.value.search(/ /) != '-1')
	{
		msg += "No space allowed in email addresss\n";
	}

	if (document.newsletter.email.value != "")		
	{
		indexAroba = document.newsletter.email.value.indexOf('@');
		indexPoint = document.newsletter.email.value.indexOf('.');
		if ((indexAroba < 0) || (indexPoint < 0))		
		{
			msg += "Incorrect email address\n";
		}
	}
	else	
	{
		document.newsletter.email.value = "";
		msg += "Please enter your email address\n";
	}
			
	if (msg == "") 
		return(true);
	else	
	{
		alert(msg);
		return(false);
	}
}

function modif_texte(method)
{
	if(method == "focus")
	{
		if(document.newsletter.email.value == "Email address")
			document.newsletter.email.value = "";
	}
	else
	{
		if(document.newsletter.email.value == "")
			document.newsletter.email.value = "Email address";
	}
}