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());}
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"";}