function init()
{
	if(document.getElementById) check_this(document.getElementById('demo').elements['toggle']);
}

function check_this(c)
{
	var f = c.form;
	if(c.checked)
	{
		f.elements['disable_1'].disabled = true;
		f.elements['disable_2'].disabled = true;
		f.elements['show_me'].className = '';
	}
	else
	{
		f.elements['disable_1'].disabled = false;
		f.elements['disable_2'].disabled = false;
		f.elements['show_me'].className = 'surprise';	
	}
}

window.onload = init;