function createRequestObject() {
	var ro;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
		ro = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else{
		ro = new XMLHttpRequest();
	}
	return ro;
}

var browser = navigator.appName;
var http = createRequestObject();

if(browser == "Microsoft Internet Explorer"){
	var meth = "POST";
}
else{
	var meth = "GET";
}

function vergrootFoto(foto,hoogte){
	setTimeout("sm('box',220,50)",10);
	
	var h = eval(hoogte) + eval(29);
	document.getElementById("ho").value = h;
	
	document.getElementById("box").innerHTML = "<div class=\"laden\"><img src=\"img/laden.gif\" alt=\"een moment geduld aub\" /></div>";
	
	http = createRequestObject();
	http.onreadystatechange = getFotos;

	http.open(meth,"modalfoto.php?foto="+foto+"&h="+hoogte,true);
	http.setRequestHeader('Content-Type','text/plain');
	http.send(null);	
}

function getFotos(){
	 if(http.readyState == 4) { 
		if(http.status  == 200) {
			var ha = document.getElementById("ho").value;
			setTimeout("sm('box','640','"+ha+"')",100);
			document.getElementById("box").innerHTML = http.responseText;
		}
	}
}

function sluiten(){
	setTimeout("hm('box')",10);
}