To add Google's plusone button on your website the following script tag is to be inserted (for explicit load).
<script type="text/javascript" src="https://apis.google.com/js/plusone.js">
{"parsetags": "explicit"}
</script>
It looks pretty straight forward in HTML. However I wan't to insert the script using a JS file. So I use the following code:
var e = document.createElement('script');
e.src = "https://apis.google.com/js/plusone.js";
e.id = "googplusonescript";
e.innerHTML = '{"parsetags": "explicit"}';
document.getElementsByTagName("head")[0].appendChild(e);
It works pretty awesome in all the browsers except IE because IE doesn't allow us to write the innerHTML of script tags. Anywork arounds anyone ? (I have jquery inserted in the page. So can use jquery too.)
Came across the same issue. Under IE you should use script.text = '{"parsetags": "explicit"}'; instead of script.innerHTML