<form id="newFormAdv"  method="post">		
<input type="submit" name="ses" id="some_element" value="Сохранить" onclick="document.getElementById('newFormAdv').submit()">
	</form>

<script>
function init()
{
    var test = document.getElementById('some_element');
    test.onclick = function() {
	newFormAdv.ses.click(); 
	document.getElementById('Module15.HskL').innerHTML = 'сохранено';
	return false;}    
    (eval(test.onclick));
}

window.onload = init;
</script> 

<?
	if (!isset($_SESSION['act'])) $_SESSION['act'] = 0;
	if(isset($_POST['ses']))
		{
				if ($_SESSION['act'] == 1) $_SESSION['act'] =0;
				else $_SESSION['act'] =1;
                }
?>

<form id="newFormAdv"  method="post">	
<input type="submit" name="ses" id="some_element" value="Сохранить" onclick="document.getElementById('newFormAdv').submit()">
</form>

<script>
function init()
{
	var val = '<?php echo $_SESSION['act']; ?>';	
	if (val == 1)	{
						newFormAdv.ses.click(); 
						document.getElementById('Module15.HskL').innerHTML = 'сохранено';
					}
}
window.onload = init;
</script>