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 null
}

function setCookie(c_name,value,expiredays)
{

	var exdate=new Date()
	exdate.setTime(exdate.getTime()+(expiredays*60000*60))
	document.cookie=c_name+ "=" +escape(value)+
	((expiredays==null) ? "" : "; expires="+exdate)
}


function checkCookie(c_name)
{
	vers=getCookie(c_name)
	if (vers==null)
		{
		setCookie(c_name, 'refresh',1)
return ("N")
		}
else{
return ("Y")
}
}