function validate() {
	if (document.tellafriend.friendmail1.value.length==0) 
	{
		alert("please enter your friend's email address");
		return false;
	}
	document.tellafriend.submit()
	return true;
}

function clickclear(thisfield, defaulttext) {
  if (thisfield.value == defaulttext) {
    thisfield.value = "";
  }
} 

function clickrecall(thisfield, defaulttext) {
  if (thisfield.value == "") {
   thisfield.value = defaulttext;
  }
}