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.setDate(exdate.getDate()+expiredays); document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate);}