if (document.images) {  
	nav_01_nl_a = new Image();   nav_01_nl_a.src = "../images/nav_01_act.jpg";
	nav_02_nl_a = new Image();   nav_02_nl_a.src = "../images/nav_02_act.jpg";
	nav_03_nl_a = new Image();   nav_03_nl_a.src = "../images/nav_03_act.jpg";
	nav_04_nl_a = new Image();   nav_04_nl_a.src = "../images/nav_04_act.jpg";

	
	nav_01_nl_p = new Image();   nav_01_nl_p.src = "../images/nav_01_pas.jpg";
	nav_02_nl_p = new Image();   nav_02_nl_p.src = "../images/nav_02_pas.jpg";
	nav_03_nl_p = new Image();   nav_03_nl_p.src = "../images/nav_03_pas.jpg";
	nav_04_nl_p = new Image();   nav_04_nl_p.src = "../images/nav_04_pas.jpg";


}

function volgende_pagina(pagina) {
 document.form1.action = pagina;
 document.form1.submit();
}

function imgAct(imgName,imgFile) {
  if (document.images) {
      document[imgFile].src = eval(imgName + '_a.src');
  }
}


function imgPas(imgName,imgFile) {
  if (document.images) {
    document[imgFile ].src = eval(imgName + "_p.src");       
  }
}

function confirmation(pagina) {
	var answer = confirm("Ben je zeker dat je dit item wil verwijderen?")
	if (answer){
		document.form1.actie.value = 'delete';
		document.form1.action = pagina;
 		document.form1.submit();
	}
	else{
	}
}

var t = 1
var m = 23
var n = 'gallery_';

function gallery_next() {
	if (t < m){
		t = t + 1;
		}
	else {
		t = 1;
		}
            if (document.images) {
                document['gallery'].src = "../images/" + n + t + ".jpg";       
            }
    }
	
function gallery_back() {
	if (t > 1){
		t = t - 1;
		}
	else {
		t = m;
		}
            if (document.images) {
                document['gallery'].src = "../images/" + n + t + ".jpg";       
            }
    }