这是一则定时显示广告的javascript
function strToDate(str,ext){ if(str==null || str=='') return; var arys = new Array(); arys = str.split('-'); var newDate = new Date(arys[0],arys[1]-1,arys[2],9,0,0); if(ext){ newDate = new Date(newDate.getTime()+1000*60*60*24); } return newDate; } function showit(str,start,end){ var date = new Date(); var start=strToDate(start); var end=strToDate(end,false); if(date>start && date document.write(str); } }