jquery 前台判断开始时间是否小于结束时间

// 判断开始时间是否小于结束时间
 if ($("#txtBeginTime").length > 0 && $("#txtEndTime").length > 0) {
     if (Date.parse(TimeFormatToSQL($("#txtBeginTime").val()).replace("-", "/")) > Date.parse(TimeFormatToSQL($("#txtEndTime").val()).replace("-", "/"))) {
    alert("开始时间不能大于结束时间!");
    //$("#txtBeginSearchTimeByBE").focus();
    return;
///<summary>
///    将传递的时间值转换为SQL识别的时间格式
///<param name="strTime">时间(正常的页面显示时间格式)</param>
///</summary>
function  TimeFormatToSQL(strTime) {
  var strResult = "";
  var strTemp = "";
  for (var i = 0; i < strTime.length; i++) {
      strTemp = strTime.substr(i, 1);
      if (strTemp == "年" || strTemp == "月")
    strResult += "-";
      else
    if (strTemp == "日" || strTemp == "秒") {
        if (strTemp == "日")
      strResult += "|";
        else
      strResult += "";
    }
    else
        if (strTemp == "时" || strTemp == "分")
      strResult += ":";
        else
      strResult += strTemp;
  }
  var strArgDateTime = strResult.split('|');  //此时的时间格式可能为2010-11-11 11: 或2010-11-11 11等格式
  if (strArgDateTime.length == 1) {
      //日期部分进行处理
      var strArgDate = strArgDateTime[0].split('-'); //此时对时间部分进行处理,可能为11: 11 或11:00等格式
      if (strArgDate.length == 2) {
    if (strArgDate[1].length < 1)
        strResult = strArgDate[0];
    else
        strResult = strArgDateTime[0] + "-01";
      } else
    if (strArgDate.length == 3) {
        if (strArgDate[2].length < 1)
      strResult = strArgDate[0] + "-" + strArgDate[1] + "-01";
    }
  }
  else
      if (strArgDateTime.length == 2) {
    //时间部分进行处理
    var strArgTime = strArgDateTime[1].split(':'); //此时对时间部分进行处理,可能为11: 11 或11:00等格式
    if (strArgTime.length == 1) {
        strResult = strArgDateTime[0] + " " + strArgDateTime[1] + ":00:00"
    } else
        if (strArgTime.length == 2) {
      if (strArgTime[1].length < 1)
          strResult = strArgDateTime[0] + " " + strArgDateTime[1] + "00"
      else
          strResult = strArgDateTime[0] + " " + strArgDateTime[1] + ":00"
        } else
      if (strArgTime.length == 3) {
          if (strArgTime[2].length < 1)
        strResult = strArgDateTime[0] + " " + strArgDateTime[1] + "00"
      }
      }
  return strResult;
}