function validateform() {

	if(document.sendfriend.fname.value=="")
	{
		alert("Please enter your friends name.");
		return false;
	}

	if(document.sendfriend.femail.value=="")
	{
		alert("Please enter your friends email address.    ");
		return false;
	}
 
    if(document.sendfriend.name.value=="")
	{
		alert("Please enter your name.");
		return false;
	}
  
    if(document.sendfriend.email.value=="")
	{
		alert("Please enter your email address.");
		return false;
	}
        return true;
}