cookie={set:function(name,value,expires){if(!expires){expires=new Date();}document.cookie=name+"="+escape(value)+";expires="+expires.toGMTString()+ ";path=/";},get:function(name){cookie_name=name+"=";cookie_length=document.cookie.length;cookie_begin=0;while(cookie_begin<cookie_length){value_begin=cookie_begin+cookie_name.length;if(document.cookie.substring(cookie_begin,value_begin)==cookie_name){value_end=document.cookie.indexOf(";",value_begin);if(value_end==-1){value_end=cookie_length;}return unescape(document.cookie.substring(value_begin,value_end));}cookie_begin=document.cookie.indexOf(" ",cookie_begin)+1;if(cookie_begin==0){break;}}return null;},save:function(cookie_name,cookie_value){name=cookie_name;tmp=cookie_value;expires=new Date();expires.setTime(expires.getTime() + (1000 * 86400 * 365));cookie.set(name, tmp, expires);},del:function(cookie_name){name=cookie_name;expires=new Date();expires.setTime(expires.getTime()+(1000*86400*365));cookie.set(name,null,expires);}}