Using javascript variable on html <a>

You're mixing your javascript into your HTML.

I believe your pathArray variable will also not contain what you are expecting.

Try this in your script tag:

var gamePath = "game.html?" + window.location.search.replace( "?", "" );
document.getElementById("gameAnchor").setAttribute("href", gamePath);

And add an id to your anchor:

<a href="#" id='gameAnchor'>

The javascript will get all GET parameters from the current url and then replace the href attribute in the element with an id of gameAnchor with your game.html concatenated with the GET parameters in the url.

You will have to use JavaScript for this as well. First give your anchor an ID:

<a id="myLink" href="game.html?"><img src="img/RestartButton.png" style="position:absolute; left:80px; top:220px"></a>

And then add following to your JavaScript code:

document.getElementById('myLink').href += pathArray;

The code will add the content of your string variable to href property of anchor element.

First, make the anchor easier to select by giving it an identifier.

<a href="#" id="pathLink"></a> (This is assuming there is more than one anchor on your page)

Then, in your script above include:

var anchor = document.getElementById("pathLink");

The anchor tag has a native href property, so assigning the new one is as easy as this:

Rewrite:

var anchor = document.getElementById("pathLink").href += pathArray;

It won't work like that. You will have to loop through the anchors your need using JavaScript.

This hasn't been tested. I'm assuming you want this to happen to more than one anchor link.

HTML:

<a class="updatethis" href="game.html">...</a>
<a href="not-game.html">...</a>
<a class="udpatethis" href="game.html">...</a>

JavaScript: var anchors = document.getElementsByTagName('a');

for (var i = 0, a; a = anchors[i++]; ) {
    if (a.className === 'updatethis') {
        a.href += window.location.search;
    }
}

You can't place a javascript variable anywhere in html. Instead you need to get the dom element through script and append the href attribute. give your anchor an id or classname and try this as an example.

<a id="myLink" href="game.html">
    <img src="img/RestartButton.png" style="position:absolute;left:80px; top:220px">
</a>

<script type="text/javascript">;
    document.getElementById('myLink').href += window.location.search
</script>