// JavaScript Document
function Exists(userEntry)
{
	var aCharExists = 0;
	var entry = userEntry;

	if (entry)
	{
		for (var i = 0; i < entry.length; i++)
		{
			if (entry.charAt(i) != " ") aCharExists = 1;
		}
	}

	if (!aCharExists) return 0;
	return 1;
}

function checkNameAndEmail(form)
{
        var error = "";

	if (!(Exists(form.FRIEND_NAME.value)))
                error += "Please enter your friend's name.\n";
	if (!(Exists(form.FRIEND_EMAIL.value)))
                error += "Please enter your friend's email.\n";
	if (!(Exists(form.MY_NAME.value)))
                error += "Please enter your name.\n";
	if (!(Exists(form.MY_EMAIL.value)))
                error += "Please enter your email.\n";				
	if (!(Exists(form.MESSAGE.value)))
                error += "Please enter your message.\n";
	if (error != "")
	{
		alert(error);
		return false;
	}
	else return true;
}