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

function delCookie(cookieName){
	document.cookie = cookieName +
		'=; expires=15/02/2003 00:00:00;' +
		"path=/; domain=." + window.location.hostname;
}


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 ""
}