SetInterval not works fine in chrome browsers

Question

It's works fine for only 5 min in chrome then the page doesn't respond am i miss anything . This is my code.It works fine in FF and IE8 Browsers

function do(){
            // coding     
            setTimeout(do,30000);
            if(navigator.userAgent.toLowerCase().indexOf('chrome') > -1){
      setInterval(do,20000);
   }
        }

Thankyou in advance

Answer 1

do is a reserved word I believe, in Chrome ( do.. while ):

function do(){}
SyntaxError: Unexpected token do

Try naming it differently?

Wait: Why are you browser sniffing?

Answer 2

Thanks for Your reply . I found that setInterval method will take 100% cpu usage in chrome browser only . see the link below code.google.com/p/chromium/issues/detail?id=25892