asp.net the return value of JS to the ASP.net control of a small example _ practical tips

Copy Code code as follows:

<script language = "javascript" type = "Text/javascript" >
var second=0;
var minute=0;
var hour=0;
window. SetInterval ("Onlinestaytimes ();", 1000);
function Onlinestaytimes ()
{
Second + +;
if (second ==60) {second =0;minute +=1;}
if (minute ==60) {minute =0;hour +=1;}
var tm=hour+ "hours" +minute + "minutes" +second + "seconds"
document.getElementById ("Time"). Innerhtml=tm;
}
</script>

In the code above, document.getElementById ("Time") is the ID of the label in the Innerhtml=tm, which enables the display of online times!