function hideShow(el_id){
	var el=document.getElementById(el_id);
	if(el_id.style.display!=""){
		el_id.style.display="";
	}else{
		el_id.style.display="none";
	}
}

function getValue(elemName) {
	var myType = document.getElementById(elemName).type;
	if (myType == 'checkbox') {
		if (document.getElementById(elemName).checked) {
			return "1";
		} else {
			return "0";
		}
	}
	if (myType == 'password' || myType == 'text' || myType == 'hidden' || myType == 'textarea'){
		return(document.getElementById(elemName).value);
	}
	if (myType == 'select-one') {
		return document.getElementById(elemName).options[document.getElementById(elemName).selectedIndex].value;
		return(document.getElementById(elemName).value);
	}
}

function fillstars(scoreElement, score){

	for(var i=1;i<=5;i++){
		document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-leeg.png";
	}
	for(i=1;i<=parseInt(score);i++){
		document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-vol.png";
	}
	document.getElementById(scoreElement).value=score;
}
       
function removestars(scoreElement){
	for(var i=1;i<=5;i++){
		document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-leeg.png";
	}
	if(getValue(scoreElement)!=0){
		for(var i=1;i<=parseInt(getValue(scoreElement));i++){
			document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-vol.png";
		}
	}
}
       
function showstars(scoreElement, score){
	for(var i=1;i<=5;i++){
 		document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-leeg.png";
	}
	for(var i=1;i<=parseInt(score);i++){
		document.getElementById("star"+scoreElement+i).src=resource_url + "/images/design/ster-vol.png";
	}
}

function checkform(form) {
	var radioval = 0;
	var hasRadio = 0;
	for (var x=0; form.elements[x]; x++ ) {
		if (form.elements[x].type == 'radio') {
			var radios = document.getElementsByName(form.elements[x].name);
			for (var i = 0;i<radios.length;i++){
				hasRadio++;
				radioval += radios[i].checked+ 0;
			}
       if ((hasRadio) && (radioval== 0)) {
	         alert("Kies een van de opties (radio buttons)" );
					return false;
				}
		} else {
    	if (form.elements[x].value == 0){
	      if(form.elements[x].id != "nocheck") {
        	alert( "Vergeten het '" + form.elements[x].id + "' veld in te vullen?" );
          form.elements[x].focus();
          return false ;
        }
      }
    }
	}
}
function update_advies(){
	
}