//VOORKOM ZOEKEN MET LEGE TERM OF 'ZOEK NAAR'
function check()
{
//return checkSubmit();
with (window.document.zkform)
{
if (zoek.value == "")
	{
	alert("Vul eerst in waarnaar je wilt zoeken en klik daarna op 'zoek'")
	zoek.focus(); 
	return false;
	}
if (zoek.value == "zoek naar...")
	{
	alert("Vul eerst in waarnaar je wilt zoeken en klik daarna op 'zoek'")
	zoek.focus(); 
	return false;
	}	
}}


//MOUSEOVERS
var cur_img_name = "";
var bType = "unknown";
var bName = navigator.appName;
var bVer  = parseInt(navigator.appVersion);

if      (bName == "Netscape" && bVer >= 3) bType = "n3";
else if (bName == "Microsoft Internet Explorer" && bVer >= 4) bType = "n3";
else if (bName == "Netscape" && bVer == 2) bType = "n2";
else if (bName == "Microsoft Internet Explorer" && bVer == 3) bType = "e3";

// preload universal images:

if (bType == 'n3')
{
   a1_n = new Image(136,14);
   a1_n.src = "/images/menu/menu01.gif";
   a1_h = new Image(136,14);
   a1_h.src = "/images/menu/menu01b.gif";
   a1_s = new Image(136,14);
   a1_s.src = "/images/menu/menu01a.gif";

   a2_n = new Image(136,14);
   a2_n.src = "/images/menu/menu02.gif";
   a2_h = new Image(136,14);
   a2_h.src = "/images/menu/menu02b.gif";
   a2_s = new Image(136,14);
   a2_s.src = "/images/menu/menu02a.gif";

   a3_n = new Image(136,14);
   a3_n.src = "/images/menu/menu03.gif";
   a3_h = new Image(136,14);
   a3_h.src = "/images/menu/menu03b.gif";
   a3_s = new Image(136,14);
   a3_s.src = "/images/menu/menu03a.gif";

   a4_n = new Image(136,14);
   a4_n.src = "/images/menu/menu04.gif";
   a4_h = new Image(136,14);
   a4_h.src = "/images/menu/menu04b.gif";
   a4_s = new Image(136,14);
   a4_s.src = "/images/menu/menu04a.gif";

   a5_n = new Image(136,14);
   a5_n.src = "/images/menu/menu05.gif";
   a5_h = new Image(136,14);
   a5_h.src = "/images/menu/menu05b.gif";
   a5_s = new Image(136,14);
   a5_s.src = "/images/menu/menu05a.gif";

   a6_n = new Image(136,14);
   a6_n.src = "/images/menu/menu06.gif";
   a6_h = new Image(136,14);
   a6_h.src = "/images/menu/menu06b.gif";
   a6_s = new Image(136,14);
   a6_s.src = "/images/menu/menu06a.gif";

   b1_n = new Image(136,14);
   b1_n.src = "/images/menu/submenu01.gif";
   b1_h = new Image(136,14);
   b1_h.src = "/images/menu/submenu01b.gif";
   b1_s = new Image(136,14);
   b1_s.src = "/images/menu/submenu01a.gif";

   b2_n = new Image(136,14);
   b2_n.src = "/images/menu/submenu02.gif";
   b2_h = new Image(136,14);
   b2_h.src = "/images/menu/submenu02b.gif";
   b2_s = new Image(136,14);
   b2_s.src = "/images/menu/submenu02a.gif";

   b3_n = new Image(136,14);
   b3_n.src = "/images/menu/submenu03.gif";
   b3_h = new Image(136,14);
   b3_h.src = "/images/menu/submenu03b.gif";
   b3_s = new Image(136,14);
   b3_s.src = "/images/menu/submenu03a.gif";

   b4_n = new Image(136,14);
   b4_n.src = "/images/menu/submenu04.gif";
   b4_h = new Image(136,14);
   b4_h.src = "/images/menu/submenu04b.gif";
   b4_s = new Image(136,14);
   b4_s.src = "/images/menu/submenu04a.gif";

   b5_n = new Image(136,14);
   b5_n.src = "/images/menu/submenu05.gif";
   b5_h = new Image(136,14);
   b5_h.src = "/images/menu/submenu05b.gif";
   b5_s = new Image(136,14);
   b5_s.src = "/images/menu/submenu05a.gif";

   b6_n = new Image(136,14);
   b6_n.src = "/images/menu/submenu06.gif";
   b6_h = new Image(136,14);
   b6_h.src = "/images/menu/submenu06b.gif";
   b6_s = new Image(136,14);
   b6_s.src = "/images/menu/submenu06a.gif";

   b7_n = new Image(136,14);
   b7_n.src = "/images/menu/submenu07.gif";
   b7_h = new Image(136,14);
   b7_h.src = "/images/menu/submenu07b.gif";
   b7_s = new Image(136,14);
   b7_s.src = "/images/menu/submenu07a.gif";
}

function hiLite(imgDocID,imgObjName) {
   if (bType == 'n3') 
   {
      if (imgDocID != cur_img_name)
      {
         document.images[imgDocID].src = eval(imgObjName + ".src")
      }
   }
}

function set_active(imgDocID,imgObjName)
{
   if (bType == "n3")
   {
      if (cur_img_name != "")
      {
         document.images[cur_img_name].src = eval(cur_img_name + "_n.src")
      }
      cur_img_name = imgDocID;
      document.images[imgDocID].src = eval(imgObjName + ".src")
   }
}