function getCookie(name)
{ 
   var start = document.cookie.indexOf(name+"="); 
   var len = start+name.length+1; 
   if ((!start) && (name != document.cookie.substring(0,name.length))) return null; 
   if (start == -1) return null; 
   var end = document.cookie.indexOf(";",len); 
   if (end == -1) end = document.cookie.length; 
   return unescape(document.cookie.substring(len,end)); 
} 

function setCookie(name,value,expires,path,domain,secure)
{ 
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+30);

    var cookieString = name + "=" +escape(value) + 
       ( (expires) ? ";expires=" + expires.toGMTString() : ";expires=" + exdate.toGMTString()) + 
       ( (path) ? ";path=" + path : "") + 
       ( (domain) ? ";domain=" + domain : "") + 
       ( (secure) ? ";secure" : ""); 
    document.cookie = cookieString; 
}    

function deleteCookie(name,path,domain)
{ 
   if (Get_Cookie(name)) document.cookie = name + "=" + 
      ( (path) ? ";path=" + path : "") + 
      ( (domain) ? ";domain=" + domain : "") + 
      ";expires=Thu, 01-Jan-70 00:00:01 GMT"; 
}