// controlled via style sheet as div does not exist on page yet!
document.write('<style type="text/css">');
document.write('@import url(immobilier2.css);');
document.write('</style>');

// controlled via function as div now exists!
function introHide() {
	document.getElementById('introIntro').style.display='none';
	document.getElementById('mainContainer').style.display='block';
	document.getElementById('fixed').style.display='block';
}