function alterObjectContent(deDiv, deContent) {
	if (document.getElementById) {
		document.getElementById(deDiv).innerHTML = deContent;
	}	else if (document.all) {
		deDiv.innerHTML = deContent;
	}
}

function $(id) {
	return document.getElementById(id);
}


function openPop(url) {
  newWin=window.open(url, "swellpop","width=630,height=500,location=no,status=yes,toolbar=no,menubar=no,resizable=yes,scrollbars=yes");
}

function openWin(url, w, h) {
  newWin=window.open(url, "swellwin","width="+w+",height="+h+",location=no,status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes");
}


function swapImg(imgField,naar) {
  if (document.images) {
    document[imgField].src = eval(imgField + naar + ".src");
  }
}

function doHideDiv(layerName) {
	f = "hideDiv('" + layerName + "')";
	setTimeout(f, 500);
}

function getLayer(sLayerName) {
  var oLayer = null;
  if (document.all) { // IE
    oLayer = document.all[sLayerName].style;
  } else if (document.layers) { // NS4
    oLayer = document.layers[sLayerName];
  } else if (document.getElementById) { // NS6
    oLayer = document.getElementById(sLayerName).style;
  }
  return oLayer;
}


function showDiv(sLayerName) {
  var oLayer = null;
  if (document.all) { // IE
    oLayer = document.all[sLayerName].style;
  } else if (document.layers) { // NS4
    oLayer = document.layers[sLayerName];
  } else if (document.getElementById) { // NS6
    oLayer = document.getElementById(sLayerName).style;
  }
  oLayer.visibility = 'visible';
}

function hideDiv(sLayerName) {
  var oLayer = null;
  if (document.all) { // IE
    oLayer = document.all[sLayerName].style;
  } else if (document.layers) { // NS4
    oLayer = document.layers[sLayerName];
  } else if (document.getElementById) { // NS6
    oLayer = document.getElementById(sLayerName).style;
  }
  oLayer.visibility = 'hidden';
}


function blockDiv(sLayerName) {
  var oLayer = null;
  if (document.all) { // IE
    oLayer = document.all[sLayerName].style;
  } else if (document.layers) { // NS4
    oLayer = document.layers[sLayerName];
  } else if (document.getElementById) { // NS6
    oLayer = document.getElementById(sLayerName).style;
  }
  oLayer.visibility = 'visible';
  oLayer.display = 'block';
}

function noneDiv(sLayerName) {
  var oLayer = null;
  if (document.all) { // IE
    oLayer = document.all[sLayerName].style;
  } else if (document.layers) { // NS4
    oLayer = document.layers[sLayerName];
  } else if (document.getElementById) { // NS6
    oLayer = document.getElementById(sLayerName).style;
  }
  oLayer.visibility = 'hidden';
  oLayer.display = 'none';
}


actieveDiv = null;
function showUitleg(divNaam) {
	if (actieveDiv != null ) {
		noneDiv(actieveDiv);
	}
	if (actieveDiv != divNaam)	{
		blockDiv(divNaam);
	}
	actieveDiv = divNaam;
}

function rand(a,b) {
	num = Math.random();
	num = (num*(b-a))+a;
	num = Math.round(num);
	return num;
}

function showSwfAlert(nr) {
	showDiv("divSwfAlert" + nr);
}

function checkOkForm(formName, msg) {
	if (typeof msg == "undefined")
		msg = "Weet u zeker dat u dit item wilt verwijderen?";
  if (confirm(msg)) {
    document[formName].submit();
  }
}
function checkOk(url, msg) {
	if (typeof msg == "undefined")
		msg = "Weet u zeker dat u dit item wilt verwijderen?";
  if (confirm(msg)) {
    location.href=url;
  }
}