Jq countdown, realize the change of digital content every hour.

& ltdiv class="box " > 10 & lt； /div & gt；

& lt script & gt

var I = 0；

setInterval(function(){

I+= 10；

$ ("box"). Html (1);

}, 1000); //once a second

& lt/script & gt；

& lt/body & gt；

Note: It is executed once every second here. You can change the time if it is performed every hour.