function setCookie(sName, sValue, domain, is_expire) {
  var now = new Date();
  if (is_expire == 1) {
	cookie_exp = new Date(now.getFullYear() + 1, now.getMonth(), now.getDay());
    document.cookie = sName + "=" + escape(sValue) + "; expires=" + cookie_exp.toGMTString() + "; path=/; domain="+domain; 
  }
  else {
	  document.cookie = sName + "=" + escape(sValue) + "; path=/; domain="+domain;
  }
}

function saveReferer() {
	var d = document;	
	var main_domain = 'hostpro.ua';	
	if (typeof(d.referrer) != "undefined" && d.referrer != "" && !d.referrer.match(new RegExp(main_domain, "i"))) {
		setCookie('hostpro_ref', d.referrer, main_domain, 0);
	}
}
saveReferer();