sfHover = function() {

  if(document.getElementById("hoofdnavigatielijst")) {
    var sfEls = document.getElementById("hoofdnavigatielijst").getElementsByTagName("LI");

    for (var i=0; i<sfEls.length; i++) {
      sfEls[i].onmouseover=function() {
        this.className+=" sfhover";

        if(document.getElementById("menu_iframe")) {
          var iframe = document.getElementById("menu_iframe");

          var submenu = this.getElementsByTagName("UL");

          if(submenu.length) {
            iframe.style.top = submenu[0].offsetTop;
            iframe.style.left = submenu[0].offsetLeft;
            iframe.style.width = submenu[0].offsetWidth;
            iframe.style.height = submenu[0].offsetHeight;
            iframe.style.display = "inline";
          }
        }

      }
      sfEls[i].onmouseout=function() {
        this.className=this.className.replace(new RegExp(" sfhover\\b"), "");

        if(document.getElementById("menu_iframe")) {
          var iframe = document.getElementById("menu_iframe");
          iframe.style.display = "none";
        }

      }
    }
  }
}
if (window.attachEvent) { window.attachEvent("onload", sfHover); }


// Open de infopopup
function OpenInfoPopup(strHREF)
{
	//var strSeperator = (strHREF.indexOf('?')>0)?'&':'?';
	// + strSeperator 
	window.open(strHREF + '','Information','location=no, status=no, toolbar=no,width=727, height=680'); 
	return false;
}

// Check if window focus is lost()
function focusLost()
{
	if (document.getElementById('strZoektrefwoord').value == '')
		document.getElementById('strZoektrefwoord').value = zoekwoord;
}

//openen popup window
function OpenAWindow(AURL,AAttr) {
  AWindow=window.open(AURL,window.name+"X",AAttr);
  if(parseInt(navigator.appVersion)>=3) AWindow.focus();
  return false;
}

//submenu tonen en verbergen
function toggleSubmenu(strSubmenu) {
	var elems = document.getElementById('groep_subnavigatie').getElementsByTagName("UL");

	for (var j=0; j<elems.length; j++) {
		if (elems[j].id == strSubmenu) {		
			if (elems[j].style.display == 'block')
				elems[j].style.display = 'none';
			else
				elems[j].style.display = 'block';
		} else {
			elems[j].style.display = 'none';
		}
	}
}

function toggleBiedHistorie() {
	var elemOmsch = $('#veiling-product-omschrijving');
	var elemGesch = $('#veiling-product-biedgeschiedenis');

	if (typeof(elemOmsch) != undefined && typeof(elemGesch) != undefined ) {
		if ($(elemGesch).css('display') != 'block') {
			$(elemOmsch).slideUp(500);
			$(elemGesch).slideDown(500);
		} else {
			$(elemOmsch).slideDown(500);
			$(elemGesch).slideUp(500);
		}
	}

	return false;
}