button-link

Hi Guys

I am trying to add back button/link to a page currently I am trying to use this code.

<input type=”button” value=”Previous Page” onclick=”goBack()”>

<script>
function goBack() {
window.history.back()
}
</script>

but I am having many problems. Lets for the moment assume that I can get the javascript working. When I put the input on the page wordpress strips the onclick event or the href so the code does not run.

Is there a way to get the above to work?

or

Is there a wordpress way to have a button/link that when clicked returns to the previous page?