A section of JavaScript alert playback code

/** * Description: * Here is the realization of playback, fast-forward and other functions of the JS file * * * * * * * * * * * * 5;//replayspeed = 1000 * 50-second playback speed of var alarmreplaytimer = null; Defines the playback timer var alarmbackuptimer = null; Defines a fallback player var flag = false;

Play switch//Play forward action address var alarmforwardurl = Getrootpath () + "/web/alarm/alarmreplaycontroller/alarmforward.do";

Play back the action address var alarmbackupurl = Getrootpath () + "/web/alarm/alarmreplaycontroller/alarmbackup.do"; var startorpause = function () {//(start/pause) play//modify start/Pause Play button value var Startorpausebutton = document.getElementById ("star
	Torpause ");
	var startorpausebuttonvalue = startorpausebutton.innerhtml;
		if (Startorpausebuttonvalue = = "Start") {UpdateTime ();
	startorpausebutton.innerhtml = "Pause";
	else {startorpausebutton.innerhtml = "start";
		//Start Play or pause play if (!flag) {//not started flag = true; Alarmreplaytimer = SetInterval ("Forward ()", replayspeed);
		Timer Refresh} else {//started flag = false; Cleartimer ()//Stop Playback}} var forward = function () {//forward var currenttime = document.getElementById ("CurrentTime "). Value;
	var currentendtime = document.getElementById ("Currentendtime"). Value;
	var comparedate = Isbigger (currenttime,currentendtime); if (comparedate==0) {$.ajax ({url:alarmforwardurl, data:{currenttime:currenttime, Currentendtime:currente
			 Ndtime}, type: ' Post ', Cache:false, DataType: ' JSON ', success:function (data) {var time = data[0]; var alarmlist = data[1];
			 Alarm Object Set inittablehtml (alarmlist);
			 Console.info (alarmlist);	 
			 if (time!=null) {document.getElementById ("CurrentTime"). Value = time;
			 }else{document.getElementById ("CurrentTime"). Value = document.getElementById ("Currentendtime"). Value; 
			}//$ ("#alarmRelay"). HTML (tablecontent);
		 }, Error:function (XMLHttpRequest, Textstatus, Errorthrown) {alert ("Play exception");
		},})}else if (comparedate==1) {alert ("Play completed");
	Cleartimer ();
	}else if (comparedate = = null) {alert ("Play exception"); The var stop = function () {//Stop CleartimeR ();
	var backward = function () {//backward var currenttime = document.getElementById ("CurrentTime"). Value;
	var currentstarttime = document.getElementById ("Currentstarttime"). Value;
	var comparedate = Isbigger (currentstarttime,currenttime); if (comparedate==0) {$.ajax ({url:alarmbackupurl, data:{currenttime:currenttime, currentstarttime:current
			 StartTime}, type: ' Post ', Cache:false, DataType: ' JSON ', success:function (data) {var time = data[0]; var alarmlist = data[1];
			 Alarm Object Set inittablehtml (alarmlist);	 
			 if (time!=null) {document.getElementById ("CurrentTime"). Value = time;
			 }else{document.getElementById ("CurrentTime"). Value = document.getElementById ("Currentstarttime"). Value;
}//document.getElementById ("CurrentTime"). Value = time; 
			$ ("#alarmRelay"). HTML (tablecontent);
		 }, Error:function (XMLHttpRequest, Textstatus, Errorthrown) {alert ("Play exception"); })}else if (comparedate==1) {alert ("PlayCompleted ");
	Cleartimer ();
	}else if (comparedate = = null) {alert ("Play exception");
	} var lasttime = function () {//Last Cleartimer ();
Backward ();
	var nexttime = function () {//Next cleartimer ();
Forward (); var clearalarmreplaytimer = function () {//Clear forward Timer if (alarmreplaytimer!=null) {cleartimeout (Alarmreplaytimer);//Clear down
	One player timer alarmreplaytimer = null; } var Clearalarmbackuptimer = function () {//Clear backward Timer if (alarmbackuptimer!=null) {cleartimeout (Alarmbackuptimer);//Clear
	Except for the last playback timer alarmbackuptimer = null;
	} var backSpace = function () {//fallback//speedup ();
	Cleartimer (); Alarmbackuptimer = SetInterval ("Backward ()", replayspeed);
	Timer timed Refresh} var fastforward = function () {//Fast-forward/speedup ();
	Cleartimer (); Alarmreplaytimer = SetInterval ("Forward ()", replayspeed);
	Timer timed Refresh} var cleartimer = function () {//Clear timer clearalarmreplaytimer ();
	Clearalarmbackuptimer ();
	
document.getElementById ("Startorpause"). InnerHTML = "Start";
	var speedup = function () {//accelerationif (Replayspeed = = 1000 * 5) {replayspeed = 1000 * 3;
	}else if (replayspeed = = 1000 * 3) {replayspeed = 1000 * 1;
	}else if (replayspeed = = 1000 * 1) {replayspeed = 100 * 5;
	}else if (replayspeed = = 5) {replayspeed = 100 * 3;
	}else if (replayspeed = = 3) {replayspeed = 100 * 1; The var assignspeed = function () {//Specifies a speed multiplier//specified multiple var assignspeedselect = document.getElementById ("Assignspeedselect"). V
	Alue;
	if (Assignspeedselect = = "1") {replayspeed = 1000 * 5;
	}else if (Assignspeedselect = = "2") {replayspeed = 1000 * 3;
	}else if (Assignspeedselect = = "5") {replayspeed = 1000 * 1;
	}else if (Assignspeedselect = = "Ten") {replayspeed = 100 * 5;
	}else if (Assignspeedselect = = "") {replayspeed = 100 * 3;
	}else if (Assignspeedselect = = "X") {replayspeed = 100 * 1;
		}//Restart timer if (alarmreplaytimer!=null) {Clearalarmreplaytimer (); Alarmreplaytimer = SetInterval ("Forward ()", replayspeed); Timer timed Refresh} if (Alarmbackuptimer!=null) {ClearalarmbackupTimer (); Alarmbackuptimer = SetInterval ("Backward ()", replayspeed);  
    Timer timed Refresh}} function Getrootpath () {//Get project path var strfullpath = Window.document.location.href;  
    var strpath = Window.document.location.pathname;  
    var pos = strfullpath.indexof (strpath);  
    var prepath = strfullpath.substring (0, POS);  
    var postpath = strpath.substring (0, Strpath.substr (1). IndexOf ('/') + 1);  
    var RootPath = Prepath + Postpath;  
return (RootPath); } $ (window). Load (function () {(function ($) {$) {$ (document). Ready (function () {jedate ({datecell: ' #current
		      StartTime ', format: ' Yyyy-mm-dd hh:mm:ss ', Istime:true, mindate: ' 2014-09-19 00:00:00 ' 
		        }), Jedate ({datecell: ' #currentEndTime ', format: ' Yyyy-mm-dd hh:mm:ss ', Istime:true,
		
		
	MinDate: ' 2014-09-19 00:00:00 '});
	
	
}) (JQuery); var updatetime = function () {var currentstarttime = document.getElementById("Currentstarttime");
	var currenttime = document.getElementById ("CurrentTime");
Currenttime.value = Currentstarttime.value;
		} * * Table content/function inittablehtml (arr) {if (arr==null) return;
		Console.info (arr);
		var str = ', Strnull = ' <td><div></div></td> ';
			var getrowhtml = function (alarmlist) {var subs = '; Subs + = ' <td player= ' a ' ><div><input type= ' checkbox ' class= ' select ' value= ' ' + Alarmlist.deviceid + ' '
			</div></td> '; if (alarmlist.alarmlevel) Subs + = ' <td><div> ' + alarmlist.alarmlevel + ' </div></td> '; else subs +
			= Strnull; if (alarmlist.alarmtype) Subs + = ' <td><div> ' + alarmlist.alarmtype + ' </div></td> '; else subs =
			Strnull; if (alarmlist.devicename) Subs + = ' <td><div> ' + alarmlist.devicename + ' </div></td> '; else subs +
			= Strnull; if (ALARMLIST.IP) Subs + = ' <td><div> ' + alarmlist.ip + ' </div></td> '; else subs + = StRnull;
			if (alarmlist.area) Subs + = ' <td><div> ' + alarmlist.area + ' </div></td> '; else subs + = Strnull; if (alarmlist.ceatetime) Subs + = ' <td><div> ' + getlocaltime (alarmlist.ceatetime) + ' </div></td
			> Else Subs + = Strnull; if (alarmlist.lastupdatetime) Subs + = ' <td><div> ' + getlocaltime (alarmlist.lastupdatetime) + ' </div>
			</td> Else Subs + = Strnull; if (alarmlist.alarmnumber) Subs + = ' <td><div> ' + alarmlist.alarmnumber + ' </div></td> '; else
			Subs + = Strnull; if (alarmlist.status) Subs + = ' <td><div> ' + alarmlist.status + ' </div></td> '; else subs + = Strnull
			;
		return subs;
		};
		var len = arr.length;
			for (var i=0;i<len;i++) {str = ' <tr class= ' id ' + arr[i].deviceid + ' ' > ';
			str = getrowhtml (arr[i]);
		str = ' </tr> ';
		var stationcontent = Document.queryselector (". Stationcontent");
		stationcontent.innerhtml = str; Document.queryselector(". SelectAll"). Checked = false; Cancels the multiple} function Getlocaltime (ns) {return new Date (NS) of the header.
Format ("Yyyy-mm-dd HH:mm:ss");

 };