Specifies the behavior when the "save" button is clicked in the editor (Default, None, Submit).
Example
<?php
$rte=new RichTextEditor();
$rte->Text="Type here";
$rte->SaveButtonMode="Submit";
$rte->ID="Editor1";
$rte->MvcInit();
echo $rte->GetString();
// use $_POST["Editor1"]to retrieve the data
?>