<script>
function toggle_div(bouton, id) {
var div = document.getElementById(id);
if(div.style.display=="none") {
div.style.display = "block";
} else {
div.style.display = "none";
}
}
</script>
<section id="show">
<div id="show_1" style="display:none;">
show_1 </div>
<div id="show_2" style="display:none;">
show_2 </div>
<!-- ETC... -->
</section>
<section id="works">
<h1>WORKS</h1>
<div id ="gal">
<div id="work_1" onclick="toggle_div(this,'show_1');"><a href="#show_1">bloc 1</a></div>
<div id="work_2" onclick="toggle_div(this,'show_2');"><a href="#show_2">bloc 2</a></div>
<!-- ETC...... -->
</div>
</section>




