function goResult() {
   //make sure all entries are selected
   var s = document.searchForm.elements['city'];
   for (var i = 0; i < s.options.length; i++) {
      s.options[i].selected = true;
   }
   document.searchForm.action = 'lijst.html'
   document.searchForm.submit()
}

function changeNav(item,val) {
   document.searchForm.elements[item].value = val;
   document.searchForm.submit();
   return true;
}

function moveSel(doSelect) {
   var from, to
   if (doSelect) {
      from = document.searchForm.q_plaats
      to =   document.searchForm.elements['city']      
   } else {
      from = document.searchForm.elements['city']
      to =   document.searchForm.q_plaats      
   }
   for (var i = 0; i < from.options.length; i++) {
      if (from.options[i].selected) {
      	
      	if (from.options[i].value=="ROTTERDAM"){
      		(doSelect) ? showWijk(true) : showWijk(false);
      	}
      	
         for (var j = 0, child = null; j < to.options.length && !child; j++) {
            if (from.options[i].text < to.options[j].text) {
               child = to.options[j];              
            }
         }          
         to.insertBefore(from.options[i--], child)
      }
   }
}

function showWijk(show){
	if (show==false){
		document.getElementById('wijk1').style.visibility="hidden";
		document.getElementById('wijk1').style.display="none";
		document.getElementById('wijk2').style.visibility="hidden";
		document.getElementById('wijk2').style.display="none";		
		document.forms[0]["wijk"].value="";
	} else {
		document.getElementById('wijk1').style.visibility="visible";
	  document.getElementById('wijk1').style.display="block";
		document.getElementById('wijk2').style.visibility="visible";
	  document.getElementById('wijk2').style.display="block";
	}
}