function validation() {
   var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/
   return (reg.exec(document.forms.litesubs.email.value)!=null)
}
function check_submit(){
var mail="",ent="",nom="",prenom="";
var bool=true;
if(document.forms.litesubs.email.value=="")
	{
	mail="Your mail is empty";
	bool=false;
	}
else if(!validation())
	{
	mail="Your mail is incorrect";
	bool=false;
	}
if(document.litesubs.nom.value=="")
	{
	nom="Your lastname is empty";
	bool=false;
	}
if(document.forms.litesubs.ent.value=="")
	{
	ent="Your company name is empty";
	bool=false;	
	}
if(bool) 
	{
	document.forms.litesubs.submit();
	setInterval("redirection();", 5000);
	}
else {
	var html="<i>\n";
	if(mail!="") html+=mail+"<br>\n";
	if(nom!="") html+=nom+"<br>\n";
	if(ent!="") html+=ent+"<br>\n";
	html+="</i>\n";
	getDoc("texte").innerHTML=html;
	getDoc("texte").style.display="block";
	}
}