function hideDhtml(){
	stop_blink();
	document.getElementById('overlay').style.display = 'none';
    document.getElementById('div_dhtml').style.display = 'none';
}

function showDhtml(){
	start_blink();
	
	if (navigator.userAgent.indexOf("MSIE 6") != -1) {
		document.getElementById('div_dhtml').style.position = 'absolute';
		document.getElementById('overlay').style.display = 'block';
		window.scrollTo(0,0);
	}
	else
		document.getElementById('overlay').style.display = 'block';
		
	document.getElementById('div_dhtml').style.display = 'block';
}


var blink_timer;
var text_visible = 1;
var text_tmp;


function blink()
{
	if (text_visible)
	{
		text_tmp = document.dhtml_form.email.value;
		document.dhtml_form.email.value = '';
		text_visible = 0;
	}
	else
	{
		document.dhtml_form.email.value = text_tmp;
		text_visible = 1;
	}
}

function start_blink()
{
	if (document.dhtml_form.email.value=='@')
		blink_timer = setInterval('blink()', 500);
}

function stop_blink()
{
	if (blink_timer)
		clearInterval(blink_timer);
}

function email_focus(this_form, blink)
{
	if (blink == 1)
		stop_blink();
	e = this_form.email;
	if (e.value == '@') e.value = '';
}

function email_blur(this_form, blink)
{
	var e = this_form.email;
	if (e.value == '@' || e.value == '')
	{
		e.value = '@';
		if (blink == 1)
			start_blink();
	}
}



function track_form(typehit)
{
	if (typeof(er_website_idtool) != 'undefined')
	{
		var img = new Image(0, 0);
		var random = Math.floor(Math.random()*9999+1);
		img.src = 'http://gateway.eravage.com/audit.php?t=website&ida='+er_website_ida+'&idt='+er_website_idtool+'&hit='+typehit+'&rand='+random;
		document.body.appendChild(img);
	}
}





var msg_mail_alert;

if (navigator.browserLanguage)
	var language = navigator.browserLanguage; 
else
	var language = navigator.language; 

if (language.indexOf('fr') > -1) msg_mail_alert = 'Merci d\'entrer un email valide !';
else if (language.indexOf('en') > -1) msg_mail_alert = 'Please enter a valid email !';
else if (language.indexOf('es') > -1) msg_mail_alert = 'Please enter a valid email !';
else if (language.indexOf('de') > -1) msg_mail_alert = 'Please enter a valid email !';
else if (language.indexOf('it') > -1) msg_mail_alert = 'Please enter a valid email !';
else msg_mail_alert = 'Merci d\'entrer un email valide !';

function check_email(this_form, no_track)
{
	var email = this_form.email.value;
	var filter = /^([\w-]+(?:\.[\w-_]+)*)@((?:[\w-]+\.)*\w[\w-]{0,100})\.([a-z]{2,8}(?:\.[a-z]{2})?)$/i;
	
	if (!filter.test(email))
	{
		alert(msg_mail_alert);
		return false;
	}
	
	if (no_track != 1)
		track_form('form');
	
	return true;
}