function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function formButtonFever(formName,action){
	var myString = "document."+formName+"."+action+"();";
	eval(myString);
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function isEmailAddr(email)
{
  var result = false
  var theStr = new String(email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}


function validate(string,length) {
    if (string.length < length) {
        return false;
    }

    var valid="1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-"

    for (var i=0; i<string.length; i++) {
        if (valid.indexOf(string.charAt(i)) < 0) {
            return false;
        }
    }

    return true;
} 

function swallowEnter(){
    if(event.keyCode==13){
        event.keyCode = null;
        return;
    }
}
function enterLogin() {
    if (event.keyCode==13) { formButtonFever('loginform','submit') }
}

function toggleTable(el) {

  var myelement = document.getElementById(el);
  var nameelement = document.getElementById(el + "-featurename");
  var myimg = document.getElementById(el + "-img");

  if( !myelement.style.display || myelement.style.display == "none" ) {
		var strAgent = navigator.userAgent.toLowerCase(); 
		var xvar = "";
	
		if 		(strAgent.indexOf("opera 5")!=-1){		xvar = "table-row";	}
		else if (strAgent.indexOf("opera")!=-1){		xvar = "table-row";		}
		else if (strAgent.indexOf("msie 6.0")!=-1){		xvar = "inline";}
		else if (strAgent.indexOf("msie 5.5")!=-1){		xvar = "inline";}
		else if (strAgent.indexOf("msie 5.0")!=-1){		xvar = "inline";}
		else if (strAgent.indexOf("msie 4")!=-1){		xvar = "inline";	}
		else if (strAgent.indexOf("netscape/7")!=-1){	xvar = "table-row";}

		else if (strAgent.indexOf("netscape6")!=-1){	xvar = "table-row";}
		else if (strAgent.indexOf("mozilla/4")!=-1){	xvar = "table-row";}
		else if (strAgent.indexOf("mozilla")!=-1){		xvar = "inline";}
		else{
			xvar = "inline";
		}

		myelement.style.display = xvar;
	    myimg.src= "afbeeldingen/info_slt.gif";
	    nameelement.style.fontWeight = "bold";
  } else {
    myelement.style.display = "none";
    myimg.src= "afbeeldingen/info.gif";
    nameelement.style.fontWeight = "normal";
  }
}