javascript - Set HTML <title> tag values dynamically -

i have html page. aim set <title> tag dynamically.

using ajax call data inserted inside title tag below

    $.get("/" + $.flydubai.config.currentlanguagecode + "/error/pagetitle/", function (data) {         document.title = data;     }); 

now, want update not browser title html <title></title> tag itself. possible? tried these:

document.getelementbyid('ttl').innerhtml = 'world'; ttl.innerhtml = 'world'; document.getelementsbytagname('title')[0].innerhtml = 'world'; document.queryselector.apply(document,['title']).innerhtml = 'world'; document.queryselectorall.apply(document,['title'])[0].innerhtml = 'world'; 

these change client side (i.e., browser title).

you can't change text within tag without browser detecting , refreshing it.

if need change tag , tag must yes or yes @ , add second title tag.

if utilize:

document.title='my new title'; 

changes made first tag.

though don't see major benefit, purpose of title tag, change window title.

also, when want modify text, use .innertext rather .innerhtml.