var preloadFlag = false;
var lastOver = 0;
var MenuImgN = new Array();
var MenuImgH = new Array();

if (document.images) {
   for(var i=0; i<MenuImg.length; i++) {
     MenuImgN[i] = new Image();
     MenuImgN[i].src = 'image/'+MenuImg[i]+'.gif';
     MenuImgH[i] = new Image();
     MenuImgH[i].src = 'image/'+MenuImg[i]+'-hl.gif';
   }
   preloadFlag = true;
}


function MenuH(n) {
   if (document.images["mimg"+n]) { 
     if (lastOver!=0) MenuN(lastOver);
     document.images["mimg"+n].src = MenuImgH[n-1].src;
     lastOver = n;

   }
}


function MenuN(n) {
   document.images["mimg"+n].src = MenuImgN[n-1].src;
   lastOver = 0;
}


function CheckSubscribe() {

   function ErrorMessage(field, errmsg) {
      alert(errmsg);
      document.forms['subscribe'].elements[field].focus();
      return false;
   }

  var filelds = document.forms['subscribe'].elements;
  var name    = filelds['name'].value;
  var email   = filelds['email'].value;

  if (! name.match(/^[^\s]+/)) { return ErrorMessage('name',  'Заполните поле "Контактное лицо".'); }
  if (! email.match(/^[a-zA-Z0-9._-]+\@[^\s:,]+\.[^\s:,]+$/i)) { return ErrorMessage('email', 'Укажите контактный e-mail.'); }
  return true;

}