// Clears the content of the email subscription field when user focuses there. 
function clear_textbox()
{
	if (document.emailSubForm.subscribeInput.value == "email newsletter")
		document.emailSubForm.subscribeInput.value = "";
}
// Fills the content of the email subscription field when user leaves it blank and unfocuses. 

function fill_textbox()
{
	if (document.emailSubForm.subscribeInput.value == "")
		document.emailSubForm.subscribeInput.value = "email newsletter";
}