function openFotoDiv(divId, width, height, source) {
	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) { 
		calculateLeft = ((document.body.clientWidth/2) - 270);
		calculateTop = (((document.body.clientHeight/2) - 217)-128);
	} else {
		calculateLeft = ((window.innerWidth/2) - 270);
		calculateTop = ((window.innerHeight/2) - 217);
	}
	theDiv = document.getElementById(divId);
	
	theDiv.style.visibility = 'visible';
	theDiv.style.height 	= height+'px';
	theDiv.style.width 		= width+'px';
	//place the div
	theDiv.style.position = 'absolute';
	theDiv.style.top = calculateTop+"px";
	theDiv.style.left = calculateLeft+"px";
	//fill the div
	theDiv.innerHTML 		= "<div align='center'><a href='javascript://' onclick=\"closeDiv('"+divId+"')\"><img src='"+source+"' /></a></div>";
	
}