function ValidateForm()
{
	Screen.Form_error = false;

	if (GetElement("txtMyName"))
		verifyMandatoryField("txtMyName", "my name");


	if (GetElement("txtMyEmailAddress"))
		verifyMandatoryEmail("txtMyEmailAddress", "'my email address'");


	if (GetElement("txtFriendName"))
		verifyMandatoryField("txtFriendName", "'my friend's name'");


	if (GetElement("txtFriendEmailAddress"))
		verifyMandatoryEmail("txtFriendEmailAddress", "'my friend's email address' field");


	if (Screen.Form_error == true)
	{
		alert(Screen.Form_errorString);
		return false;
	}
	else
	{
		return true;
	}
}