Change the href of the google +1 button using jquery

Question

how can I change the href attribute of my google +1 button via some jQuery

The button initially loads with an empty href.

here is what I have tried so far

$(document).ready(function () {
    var qrCode = 'A12345';
    var shareLink = "http://<?php echo $_SERVER['HTTP_HOST'];?>/show.php?qrCode="+qrCode;
    $("#shareLink").attr("href", shareLink);
});

<g:plusone size='medium' id='shareLink' annotation='none' href='' callback='countGoogleShares'></g:plusone>

Answer 1

I finally got it to work the way I wanted it to. I restructured the code a bit to get it to work. Instead of trying to change out the href attribute on document.ready, I ended up creating an empty div to be the container for the google plus button and writing the button with the correct href via .html()

//load the google plus javascript api
<script type="text/javascript" src="https://apis.google.com/js/plusone.js">
    {"parsetags": "explicit"}
</script>

//create an empty div to be the target of the google plus button
<div id="plusContent"></div>

<script>
    //get the qrcode to append to the url (ajax call in real life)
    var qrCode = 'A12345';

    //build the google plus object text string
    var googleShareLink = "<g:plusone size='medium' id='shareLink' class='shareLink'  annotation='none' href='http://<?php echo $_SERVER['HTTP_HOST'];?>/show.php?qrCode="+qrCode+"' callback='countGoogleShares'></g:plusone>";

    //write the google plus object to the target div
    $("#plusContent").html(googleShareLink);

    //render the +1 buttons in the target location
    gapi.plusone.go("plusContent");
</script>