// JavaScript Document
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.toGMTString())+';path=/';  
}   
   
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));  
        }  
      } 
	  else return "";
    return "";  
}  
  
function checkCookie(c_name,value)  
{  
    cookie_value=getCookie(c_name);  
    if (cookie_value==value) {  

        return true;
   }  
   else return false;
}  

function deleteCookie(c_name) {  
    document.cookie = c_name +'=; expires=Thu, 01-Jan-70 00:00:01 GMT;path=/';
}