. Net dynamically displays the current time (client javascript)

I personally think Ajax is not good for Ajax! Isn't JavaScript ideal for processing on the client? Copy codeThe Code is as follows: function Timer (span)
{
Var tmp = new Date ();
Var milsecs = Date. parse (tmp. getMonth () + "-" + tmp. getDay () + "-" + tmp. getFullYear () + "" + document. getElementById ('lbl _ Hour '). innerText + ":" + document. getElementById ('lbl _ Minute '). innerText + ":" + document. getElementById ('lbl _ second '). innerText );
Var timer = new Date (milsecs + span );
Var seconds, minutes, hours, date;
If (timer. getSeconds () <10)
Seconds = "0" + timer. getSeconds ();
Else
Seconds = timer. getSeconds ();
If (timer. getMinutes () <10)
Minutes = "0" + timer. getMinutes ();
Else
Minutes = timer. getMinutes ();
If (timer. getHours () <10)
Hours = "0" + timer. getHours ();
Else
Hours = timer. getHours ();
Date = timer. getDate ();
Document. getElementById ('lbl _ second'). innerText = seconds;
Document. getElementById ('lbl _ Minute '). innerText = minutes;
Document. getElementById ('lbl _ Hour '). innerText = hours;
}
// Obtain the server time check every updatespan minute, and update the local clock every second.
Function GetServerTime (updatespan)
{
Var clientspan = 1*1000;
// Update the local clock
SetInterval ("Timer (" + clientspan + ")", clientspan );
// Synchronize the server clock
SetInterval ("window. location. href = 'current url'", updatespan );
}