Write code above <header> tag using Javascript

Question

I'm putting a javascript on a website, I also need to add an open graph tag above the tag of the page. Is there a way to add the code there using document.write or any other javascript method rather than asking the user to add it by himself which is not easy for a person without html knowledge.

Thanks.

Can you be a bit more specific? What's the 'open graph' tag? Why do you need to add it? — raina77ow
– raina77ow, Commented Sep 13, 2012 at 11:13
Well, you can't update open graph properties once the page loads cause facebook requests it on page load. You should refer to this thread — automaticAllDramatic
– automaticAllDramatic, Commented Sep 13, 2012 at 11:22

Rob W · Accepted Answer · 2012-09-13 13:33:59Z

1

This is the example code to add a paragraph before an element with ID someID:

   var writeinTo = document.getElementsByID('someID');
   var para = document.createElement('p');
   writeinTo.parentNode.insertBefore(para, writeinTo);

edited Sep 13, 2012 at 13:33

Rob W

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answered Sep 13, 2012 at 11:16

automaticAllDramatic

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2 Comments

rksh Over a year ago

well i want to add the code in between the <head></head> tags, is there a way to do that?

automaticAllDramatic Over a year ago

Yes, var head= document.getElementsByTagName('head')[0]; var script= document.createElement('script'); script.type= 'text/javascript'; script.src= '<somescript>.js'; head.appendChild(script); However, I doubt this will help adding og tags

James · Accepted Answer · 2012-09-13 13:30:39Z

0

Take a look at insertBefore. If you're using jQuery, you can do it like this:

$('<meta name="foo" content="bar">').insertBefore('head');

Updated example because I thought the OP meant the <header> element, not <head>.

edited Sep 13, 2012 at 13:30

answered Sep 13, 2012 at 11:14

James

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1 Comment

rksh Over a year ago

does insterbefore works on code above </head> tag? api.jquery.com/insertBefore from here i can see that it only works for tags in between <body> not above that

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