function postIt(frm)
{
	if(isNull(frm.mPostTo.value))
	{
		alert("To cannot be blank");
		frm.mPostTo.focus();
		return;
    }
	if(isNull(frm.mPostMessage.value))
	{
		alert("Message cannot be blank");
		frm.mPostMessage.focus();
		return;
    }
	if(isNull(frm.mPostFrom.value))
	{
		alert("From cannot be blank");
		frm.mPostFrom.focus();
		return;
    }
	
	frm.act.value="add";
	frm.submit();
}