var imgheaderwelkom         	= new Image();
var imgheaderkennismaking   	= new Image();
var imgheaderafscheid       	= new Image();
var imgheadersteigernieuws  	= new Image();
var imgheadervrienden       	= new Image();
var imgheaderboeklink       	= new Image();
var imgheaderfotoalbum       	= new Image();
var imgheadergastenboek 		= new Image();
var imgheaderdezesite       	= new Image();

//var imgbolletje            		= new Image();
imgheaderwelkom.src        		= "images/headerwelkom.gif";
imgheaderkennismaking.src  		= "images/headerkennismaking.gif";
imgheaderafscheid.src      		= "images/headerafscheid.gif";
imgheadersteigernieuws.src 		= "images/headersteigernieuws.gif";
imgheadervrienden.src      		= "images/headervrienden.gif";
imgheaderboeklink.src      		= "images/headerboeklink.gif";
imgheadergastenboek.src     	= "images/headergastenboek.gif";
imgheaderdezesite.src      		= "images/headerdezesite.gif";
imgheaderfotoalbum.src          = "images/headerfotoalbum.gif";

var browser = getBrowser();	
//if (browser.nav){
//	alert('U gebruikt Netscape Navigator.\nHelaas is deze site niet geoptimaliseerd voor deze browser.\nSommige //teksten zullen daardoor slechter leesbaar zijn.\nOok zullen sommige afbeeldingen niet getoond kunnen //worden.\nExcuses hiervoor.')
//}

function PageInit(){
	var sw = screen.width
	//alert (sw)
	if (sw > 1152) {sw = 1152}
	if ((sw == 800) || (sw == 1024) || (sw == 1152)){
		document.all['handen'].className="handen_" + sw
		document.all['items1'].className="items1_" + sw
		document.all['items2'].className="items2_" + sw
		document.all['icons'].className="icons_" + sw
		document.all['header'].className="header_" + sw
		document.all['DeBody'].className="body_" + sw
	}
	//alert(document.all['DeBody'].className)
}

function doNavigate(init){

	fn = getFileName();

	if (fn.length==0) fn="index.html" //op de site hoeft index.html niet perse in de url te staan als het als default homepage staat.
	bol1.src=bol2.src=bol3.src=bol4.src=bol5.src=bol6.src=bol7.src="images/bolletje.gif";
	email.src=boek.src=steiger.src=site.src="images/spacer.gif";

	switch (fn) {
		case "index.html":
			bol1.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheaderwelkom.src
			break;
		case "kennismaking.html":
			bol2.src= "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheaderkennismaking.src
			break;
		case "afscheid.html":
			bol3.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheaderafscheid.src
			break;
		case "steigernieuws.html":
			bol4.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheadersteigernieuws.src
			break;
		case "vrienden.html":
			bol5.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheadervrienden.src
			break;
		case "boeklink.html":
			bol6.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheaderboeklink.src
			break;
		case "fotoalbum.html":
			bol7.src = "images/bolletje_geselecteerd.gif";
			if (init==1) paginatitel.src = imgheaderfotoalbum.src
			break;
		case "gastenboek.html":
			boek.src = "images/boek.gif";
			if (init==1) paginatitel.src = imgheadergastenboek.src
			break;
		case "dezesite.html":
			site.src = "images/info.gif";
			if (init==1) paginatitel.src = imgheaderdezesite.src
			break;
	}
}

function getFileName(){
	var namepath = window.location.pathname;
	var pathelements = namepath.split("/");
	var filename = pathelements[pathelements.length-1];
	return filename;
}

function PopUpGedicht(){
	//deze functie plaatst de popup in het midden van het scherm

	var PopWidth = 460;
	var PopHeight = 580;
	var x = (screen.width-PopWidth)/2;
	var y = (screen.height-PopHeight)/2;
	var w = window.open('gedicht_popup.html','p','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=' + PopWidth + ',height=' + PopHeight + ',left=' + x + ',top=' + y + ',screenX=' + x + ',screenY=' + y);
}

function PopupBegrip(id){
//alert(id)
	document.begrippen.selectie.value = id

	var PopWidth = 460;
	var PopHeight = 180;
	var x = (screen.width-PopWidth)/2;
	var y = (screen.height-PopHeight)/2;
	var w = window.open('begrip_popup.html','p','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=' + PopWidth + ',height=' + PopHeight + ',left=' + x + ',top=' + y + ',screenX=' + x + ',screenY=' + y);

}

function ShowImage(img){
	foto.src= "fotos/" + img
}		
	
function getBrowser(){
	var browser = new Object();
	var agent = navigator.userAgent.toLowerCase();
	
	// versie bekijken
	browser.major = parseInt(navigator.appVersion);
	browser.minor = parseFloat(navigator.appVersion);
	
	// netscape
	browser.nav  = ( (agent.indexOf('mozilla') != -1 )
	             && (agent.indexOf('opera') == -1)
	             && (agent.indexOf('compatible') == -1) );
	browser.nav2 = (browser.nav && ((browser.major >= 2) && (browser.major < 3 )));
	browser.nav3 = (browser.nav && ((browser.major >= 3) && (browser.major < 4 )));
	browser.nav4 = (browser.nav && (browser.major >= 4));
	
	// explorer
	browser.ie   = (agent.indexOf("msie") != -1);
	browser.ie3  = (browser.ie && (browser.major == 2));
	browser.ie4  = (browser.ie && (browser.major >= 4));
	
	// overige browsers
	browser.op 		= (agent.indexOf("opera") != -1);
	browser.unix  	= (agent.indexOf("x11") != -1);
	browser.win   	= (agent.indexOf("win") != -1);
	browser.mac   	= (agent.indexOf("mac") != -1);
	
	return browser;
}