[monolithed]

<script type="text/javascript">
window.onload = function(){
    document.getElementsByTagName('a')[0].onclick = function(){
        var div = document.getElementsByTagName('div')[0];
        div.style.display = div.style.display == 'block' ? '' : 'block';
    };
};
</script>

<style type="text/css">
div {display: none;}
</style>

<a href="#">click</a>
<div>text</div>