var Open = ""
var Closed = ""

function picwindow(groep, picid, imagewidth, imageheight)
	{
	picturewindow = open('', 'picturewindow','toolbar=0,menubar=0,scrollbars=0,status=0,resizable=0,width=640,height=480'); 
	picturewindow.location = '/catalogus/show.php?group='+groep+'&pid='+picid+'&h='+imageheight+'&w='+imagewidth;
	picturewindow.focus();
	
}

function preload(){
if(document.images){
	Open = new Image(16,13)    
	Closed = new Image(16,13)
	Open.src = "/images/admin/open.gif"
	Closed.src = "/images/admin/closed.gif"
}}


function showhide(what,what2){
if (what.style.display=='none'){
what.style.display='';
what2.src=Open.src
}
else{
what.style.display='none'
what2.src=Closed.src
}
}

// Secure interface pagina

function checkData() {
	var f1 = document.forms[0];
	var wm = "Please fill in the following data:\n\r\n";
	var noerror = 1;

	// --- entered_login ---
	var t1 = f1.entered_login;
	if (t1.value == "" || t1.value == " ") {
		wm += "Username\r\n";
		noerror = 0;
	}

	// --- entered_password ---
	var t1 = f1.entered_password;
	if (t1.value == "" || t1.value == " ") {
		wm += "Password\r\n";
		noerror = 0;
	}

	// --- check if errors occurred ---
	if (noerror == 0) {
		alert(wm);
		return false;
	}
	else return true;
}