// ++++++++++++++++++++++++++++++++++++++++++ //
// OPEN NEW WINDOW IN CENTER OF SCREEN        // 
// ++++++++++++++++++++++++++++++++++++++++++ //

function NewWindow(mypage, myname, w, h, scroll) {

var winl = (screen.width - w) / 2;
var wint = ((screen.height - 50)- h) / 2;

winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',noresize'
win = window.open(mypage, myname, winprops)

if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}


// ++++++++++++++++++++++++++++++++++++++++++ //
// SPAWN EXTERNAL LINK IN POPUP WINDOW          // 
// ++++++++++++++++++++++++++++++++++++++++++ //

function extern(mypage) {
var w = 417;
var h = 500;
var winl = (screen.width - w) / 2;
var wint = ((screen.height - 50)- h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=yes,noresize'
win = window.open(mypage, 'extern', winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}


// ++++++++++++++++++++++++++++++++++++++++++ //
// ROLLOVER VOOR BOVENSTE MENU ITEMS      // 
// ++++++++++++++++++++++++++++++++++++++++++ //

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		menu1_on = newImage("images/menu1_on.gif");
		preloadFlag = true;
	}
}