1 function setCookie(c_name,value,expireSeconds) 2 { 3 var date=new Date(); 4 date.setTime(date.getTime()+expireSeconds*1000); //设置date为当前时间+expireSeconds秒 5 document.cookie=c_name+"="+value+"; expires="+date.toGMTString(); //将date赋值给expires 6 } 7 8 function getCookie(c_name) 9 { 10 if (document.cookie.length>0) 11 { 12 c_start=document.cookie.indexOf(c_name + "=") 13 if (c_start!=-1) 14 { 15 c_start=c_start + c_name.length+1 16 c_end=document.cookie.indexOf(";",c_start) 17 if (c_end==-1) c_end=document.cookie.length 18 return unescape(document.cookie.substring(c_start,c_end)) 19 } 20 } 21 return "" 22 }