/**

	 *获取当前时间

	 *format=1精确到天

	 *format=2精确到分

	*/

	function getCurrentDate(format) {

	  var now = new Date();

	  var year = now.getFullYear(); //得到年份

	  var month = now.getMonth();//得到月份

	  var date = now.getDate();//得到日期

	  var day = now.getDay();//得到周几

	  var hour = now.getHours();//得到小时

	  var minu = now.getMinutes();//得到分钟

	  var sec = now.getSeconds();//得到秒

	  month = month + 1;

	  if (month < 10) month = "0" + month;

	  if (date < 10) date = "0" + date;

	  if (hour < 10) hour = "0" + hour;

	  if (minu < 10) minu = "0" + minu;

	  if (sec < 10) sec = "0" + sec;

	  var time = "";

	  //精确到天

	  if(format==1){

		time = year + "-" + month + "-" + date;

	  }

	  //精确到分

	  else if(format==2){

		time = year + "-" + month + "-" + date+ " " + hour + ":" + minu + ":" + sec;

	  }

	  return time;

	}

	alert(getCurrentDate(2));