var date1=Date.parse("2014-9-3 11:40:14".replace(/-/g,"/"));
var date2=Date.parse("2014-9-3 12:03:44".replace(/-/g,"/"));
var now=new Date();
if(date1>now) {
alert("未开始");
}else if(date2<=now) {
alert("已结束");
}
var date1=Date.parse("2014-9-3 11:40:14".replace(/-/g,"/"));
var date2=Date.parse("2014-9-3 12:03:44".replace(/-/g,"/"));
var now=new Date();
if(date1>now) {
alert("未开始");
}else if(date2<=now) {
alert("已结束");
}