function popupChat() {
        win=window.open("popup.html", "Chat",
                   "height=220,width=520");
} 
function send()
{
   if (document.UserInfo.NICKNAME.value == null ||
                                        document.UserInfo.NICKNAME.value == "")
   {
        window.alert("Vous devez entrer un pseudo.")
        return false
   }
   if (document.UserInfo.AGE.value == null ||
                                        document.UserInfo.AGE.value == "")
   {
        window.alert("Vous devez entrer votre age.")
        return false
   }
   if (document.UserInfo.SEX.value == null ||
                                        document.UserInfo.SEX.value == "")
   {
        window.alert("Vous devez entrer votre sexe.")
        return false
   }
   if (document.UserInfo.VILLE.value == null ||
                                        document.UserInfo.VILLE.value == "")
   {
        window.alert("Vous devez entrer votre ville.")
        return false
   }
 var USERNICK = document.UserInfo.NICKNAME.value
 var USERCHAN = document.UserInfo.CHAN.value
 var USERAGE = document.UserInfo.AGE.value
 var USERSEX = document.UserInfo.SEX.value
 var USERTOWN = document.UserInfo.VILLE.value
 win.document.close()
 return true
}