var MSIE = false;
if (navigator.appName=="Microsoft Internet Explorer") {
	MSIE = true;
}
function closedownloadwindow() {
	if (MSIE) {
		document.getElementById('maincontainer').style.filter = 'Alpha(opacity=100)';
	} else {
		document.getElementById('maincontainer').style.opacity = '1.0';
	}
	document.getElementById('downloadwindow').style.display = 'none';
}
function changelinks() {
	var pagelinks=document.getElementsByTagName('a');
	for (var i=0; i<pagelinks.length; i++){
		if (pagelinks[i].getAttribute('rel') && pagelinks[i].getAttribute('rel')=='downloadlink') {
				pagelinks[i].onclick=function() {
				if (MSIE) {
					document.getElementById('maincontainer').style.filter = 'Alpha(opacity=50)';
				} else {
					document.getElementById('maincontainer').style.opacity = '0.5';
				}
				document.getElementById('downloadwindow').style.display = 'block';
				//inner = '<iframe src="downloadform.php?link='+pagelinks[i].getAttribute('href')+'"></iframe>';
				document.getElementById('downloadwindow').innerHTML = '<iframe src="downloadform.php?link='+this.href+'" frameborder="0"></iframe><br><a href="" onclick="closedownloadwindow();return false">Venster sluiten</a>';
				return false;
			}
		}
	}
}
//this.targetlinks[this.targetlinks.length]=pagelinks[i]