var opaquestart = 30;
var opaque = opaquestart;

function showImage(volgnr) {
	var path, topvalue;
	path = 'images/nieuw/'+volgnr+'.jpg';
	document.getElementById('grotefoto').src = path;
	document.getElementById('foto').style.display='inline';
	topvalue = 20;
	leftvalue = -150;
	document.getElementById('foto').style.top = topvalue + 'px'; 
	document.getElementById('foto').style.left = leftvalue + 'px'; 
	glow(); 
}

function ribImage(volgnr,nr) {
	 document.getElementById('groteRibFoto'+nr+'').src = 'images/occas/'+volgnr; 
	
}

function ribBigImage(imgsrc,volgnr) {
	document.getElementById('grootstefoto').style.display = 'inline';
	/* imgsrc = imgsrc.replace('281', '640'); */ 
	document.getElementById('gf').src = imgsrc;
	topvalue = volgnr * 150;
	leftvalue = 50;
	document.getElementById('grootstefoto').style.top = topvalue + 'px';
	document.getElementById('grootstefoto').style.left = leftvalue + 'px'; 
}

function normal(element) {
	element.style.backgroundColor='';
	element.style.color='';
}

function glow() {
	if (opaque < 100) 	{
		document.getElementById('foto').style.opacity = opaque/100; /* voor Mozilla / firefox */
		document.getElementById('foto').style.filter = 'alpha(opacity=' + opaque + ')'; /* voor MSIE */
		opaque = opaque + 3;
		setTimeout("glow()", 100);
	}
}