// JavaScript Document
<!--
function change_calques(elm) {
var div = elm.parentNode.getElementsByTagName('div')[0];
var btnText = elm.value;
if (div.style.display=="none" ) {
 div.style.display = "block";
 elm.value = btnText.replace(/Montrer/,"Cacher" );
} else {
 div.style.display = "none";
 elm.value = btnText.replace(/Cacher/,"Montrer" );
}
}
-->