setcookie,getcookie,delcookie,setpostBgPic

function setCookie(name,value) { var Days = 365; //此 cookie 将被保存 30 天
var exp  = new Date();    //new Date("December 31, 9998");
exp.setTime(exp.getTime() + Days*24*60*60*1000); document.cookie = name + "="+ escape (value) + ";path=/;expires=" + exp.toGMTString(); } function getCookie(name) { var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)")); if(arr != null) return unescape(arr[2]); return null; } function delCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval=getCookie(name); if(cval!=null) document.cookie= name + "="+cval+";path=/;expires="+exp.toGMTString(); } function setPostBgPic(getDefaultBg){ var getValue=getCookie("mfl_templetPostBg"); if(getValue=="null"||getValue==null||getValue==""){ document.body.background=getDefaultBg; }else{ document.body.background=getValue; } }