function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}

//function setCookie(c_name,value,expiredays)
//{
//var exdate=new Date();
//exdate.setDate(exdate.getDate()+expiredays);
//document.cookie=c_name+ "=" +escape(value)+
//((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
//}

//function checkCookie()
//{
//var username=getCookie('username');
//if (username!=null && username!="")
//  {
//  alert('Welcome again '+username+'!');
//  }
//else
//  {
// username=prompt('Please enter your name:',"");
//  if (username!=null && username!="")
//    {
//    setCookie('username','mvunk',365);
//    }
//  }
//}