jquery获取、设置、删除cookie

function getCookie(cname) { ????????????var name = cname + "="; ????????????var ca = document.cookie.split(‘;‘); ????????????for(var i=0; i<ca.length; i++) { ????????????????var c = ca[i]; ????????????????while (c.charAt(0)==‘ ‘) c = c.substring(1); ????????????????if (c.indexOf(name) != -1) return c.substring(name.length, c.length); ????????????} ????????????return""; ????????}

function setCookie(cname, cvalue, exdays) {//删除cookie ????????????var date = new Date(); ????????????date.setTime(date.getTime() + (exdays*24*60*60*1000)); ????????????var expires = "expires="+date.toUTCString(); ????????????document.cookie = cname + "=" + cvalue + "; " + expires; ????????};

function clearCookie(name) { ?????????????setCookie(name, "", -1); ?????????}