var string = "Enter your email address"; 

function submit_subscription()
{ 
if(document.form_contact_head.form_email.value == "" || document.form_contact_head.form_email.value == string)
{ document.form_contact_head.form_email.value = string; }
else
{ 
document.form_contact_head.submit(); 
//location.href = 'subscription_options_action.php?form_group_count=1&form_group_1=1&form_option=1&form_email=' + document.form_contact_head.form_email.value; 
}
}

function check_subscription()
{ 
if(document.form_contact_head.form_email.value == string)
{ document.form_contact_head.form_email.value = ""; }
}

function pop_window(url,width,height)
{ thewindow = window.open(url,'popped','width='+width+',height='+height+',toolbars=no,scrollbars=yes,copyhistory=yes,status=no'); }

function toggle(id)
{
	if (document.layers)
	{
		current = (document.layers[id].display == 'none') ? 'block' : 'none';
		document.layers[id].display = current;
	}
	else if (document.all)
	{
		current = (document.all[id].style.display == 'none') ? 'block' : 'none';
		document.all[id].style.display = current;
	}
	else if (document.getElementById)
	{
		vista = (document.getElementById(id).style.display == 'none') ? 'block' : 'none';
		document.getElementById(id).style.display = vista;
	}
}