browserOK = true;
 pics = new Array();
 var objCount = 0;

function preload(name, first, second) {
	 if (browserOK) {
 		pics[objCount] = new Array(3);
 		pics[objCount][0] = new Image();
 		pics[objCount][0].src = first;
 		pics[objCount][1] = new Image();
 		pics[objCount][1].src = second;
 		pics[objCount][2] = name;
 		objCount++;
	}
}

function off(){
	if (browserOK) {
 		for (i = 0; i < objCount; i++) {
 	// set back all pictures
 			if (document.images[pics[i][2]] != null)
	 			document.images[pics[i][2]].src = pics[i][0].src;
 		}
	}
}

function on(name){
	off();
	if (browserOK) {
 		for (i = 0; i < objCount; i++) {
 			if (document.images[pics[i][2]] != null) {
 				if (name != pics[i][2]) {
 					document.images[pics[i][2]].src = pics[i][0].src;
				}
				else {
					document.images[pics[i][2]].src = pics[i][1].src;
				}
			}
		}
	}
}

preload("nh", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("zh", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("gr", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("ut", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("li", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("ze", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("fl", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("fr", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("ge", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("nb", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("ov", "images/lichtjeuit.gif", "images/lichtjeaan.gif");
preload("dr", "images/lichtjeuit.gif", "images/lichtjeaan.gif");

var prov = "";
nl = new Image();
nl.src = "pics/nl_leeg.gif";
nl = new Image();
nl.src = "pics/nl_al.gif";
nl = new Image();
nl.src = "pics/nl_dr.gif";
nl = new Image();
nl.src = "pics/nl_fl.gif";
nl = new Image();
nl.src = "pics/nl_fr.gif";
nl = new Image();
nl.src = "pics/nl_ge.gif";
nl = new Image();
nl.src = "pics/nl_gr.gif";
nl = new Image();
nl.src = "pics/nl_li.gif";
nl = new Image();
nl.src = "pics/nl_nb.gif";
nl = new Image();
nl.src = "pics/nl_nh.gif";
nl = new Image();
nl.src = "pics/nl_ov.gif";
nl = new Image();
nl.src = "pics/nl_ut.gif";
nl = new Image();
nl.src = "pics/nl_ze.gif";
nl = new Image();
nl.src = "pics/nl_zh.gif";

function aan(p,i) {
  document.images['nl'].src = i;
}

function uit(p) {
	if (prov=="" ) {
		document.images['nl'].src = 'pics/nl_leeg.gif';
	}
	else {
		toon_selec();
	}
}

function sel(p) {
  prov = p;
  document.forms['selectie'].elements['regio_text'].value = p;
}

function sel2() {
  prov = document.forms['selectie'].elements['regio_text'].value;
  toon_selec();
}

function toon_selec() {
	if (prov=="Alle") {
		document.images['nl'].src = 'pics/nl_al.gif';
	}
	else {
		if (prov=="Drenthe") {
			document.images['nl'].src = 'pics/nl_dr.gif';
		}
		else {
			if (prov=="Flevoland") {
				document.images['nl'].src = 'pics/nl_fl.gif';
			}
			else {
				if (prov=="Friesland") {
					document.images['nl'].src = 'pics/nl_fr.gif';
				}
				else {
					if (prov=="Gelderland") {
						document.images['nl'].src = 'pics/nl_ge.gif';
					}
					else {
						if (prov=="Groningen") {
							document.images['nl'].src = 'pics/nl_gr.gif';
						}
						else {
							if (prov=="Limburg") {
								document.images['nl'].src = 'pics/nl_li.gif';
							}
							else {
								if (prov=="Noord-Brabant") {
									document.images['nl'].src = 'pics/nl_nb.gif';
								}
								else {
									if (prov=="Noord-Holland") {
										document.images['nl'].src = 'pics/nl_nh.gif';
									}
									else {
										if (prov=="Overijssel") {
											document.images['nl'].src = 'pics/nl_ov.gif';
										}
										else {
											if (prov=="Utrecht") {
												document.images['nl'].src = 'pics/nl_ut.gif';
											}
											else {
												if (prov=="Zeeland") {
													document.images['nl'].src = 'pics/nl_ze.gif';
												}
												else {
													if (prov=="Zuid-Holland") {
														document.images['nl'].src = 'pics/nl_zh.gif';
													}
													else {
														document.images['nl'].src = 'pics/nl_leeg.gif';
													}
												}
											}
										}
									}
								}
							}
						}
					}
				}
			}
		}
	}
}

function checkOut() {
	var d = document.selectie;
	if (d.regio_text.value == "") {
		alert ("Selecteer een provincie a.u.b.");
		d.regio_text.focus();
		return false;
	}
	document.selectie.submit();
}

function leapto(form) {
	var myindex=form.regio_text.selectedIndex;
	if (myindex>=1) {
		pic='';
		prov=form.regio_text.options[myindex].value;
		window.location=prov;

		if (prov=='#Zeeland') pic='ze';
		if (prov=='#Utrecht')	pic='ut';
		if (prov=='#Flevoland') pic='fl';
		if (prov=='#Noord-Holland') pic='nh';
		if (prov=='#Zuid-Holland') pic='zh';
		if (prov=='#Gelderland') pic='ge';
		if (prov=='#Limburg') pic='li';
		if (prov=='#Overijssel') pic='ov';
		if (prov=='#Noord-Brabant') pic='nb';
		if (prov=='#Friesland') pic='fr';
		if (prov=='#Groningen') pic='gr';
		if (prov=='#Drenthe') pic='dr';
		on(pic);
	}
	else {
		alert("U hebt nog geen optie geselecteerd!");
	}
}