<script type="text/javascript">
function show(id)
{
	var result = '';
	for (i=0; i < id.length; i++)
	{
		if (id[i] <= '9' && id[i] >= '0')
		result += id[i];
	}

	x = document.getElementById(id);

	if( x.style.display == undefined || x.style.display == 'block')
	{
                x.style.display="none";
		document.getElementById('xek'+result).innerHTML = 'Показать форму';
        }
	else
	{
		x.style.display="block";
		document.getElementById('xek'+result).innerHTML = 'Скрыть форму';
        }        
}
</script>
<a href="#" onclick="javascript:show('node1')" /><div id="xek1">Показать форму</div></a>
<div id="node1">forma</div>