function checkForm()
{

	err = 0;
	message ="";
	if(document.getElementById("name").value == "")
	{
		err++;
		message += "Name\n";
	}
	if(document.getElementById("number").value == "")
	{
		err++;
		message += "Telephone Number\n";
	}
	if(document.getElementById("email").value == "")
	{
		err++;
		message += "E-mail address\n";
	}
	if(document.getElementById("message").value == "")
	{
		err++;
		message += "Message\n";
	}

	if(err>0)
	{
		alert("Please enter the following information:\n" + message);
		return false;
	}
	else
	{
		return true;
	}
}