function toframe(content,id) {
	//alert("frame"+id);
	frames[id]=content;
	document.getElementById('frame'+id).innerHTML=content;
	showframe(id,framecount);
}

function showframe2(id,framecount2) {
	//alert("["+id+"-"+framecount2+"]");
	for(a=1; a<=framecount2; a++) {
		document.getElementById('frame'+a).style.display="none";
	}
	document.getElementById('frame'+id).style.display="block";
}

var pastframe=0;
var frametabs=new Array();
var frametab=0;
function showframe(a) {
	//alert(a);
	frametab=a;
	if(!frametabs[a] || frametabs[a]=="" || frametabs[a]<1) {
		switchtoframe('1',a);
	} else {
		switchtoframe(frametabs[a],a);
	}
	//document.getElementById('nr').innerHTML=a;
	//document.getElementById('all').style.display="block";
}

function hideframe() {
	document.getElementById('all').style.display="none";
}

function switchtoframe(a,b) {
	//alert(a+","+b);
	if(b>0) {
		waarde=frametabs[b];
		frametabs[b]=a;
		frametab=b;
	} else {
		waarde=frametabs[frametab];
		frametabs[frametab]=a;
	}
	document.getElementById('frame'+a).style.display="block";
	if(pastframe!=a && pastframe>0) {
		document.getElementById('frame'+pastframe).style.display="none";
	}
	pastframe=a;
}

function news(i) {
	for(a=1; a<=3; a++) {
		document.getElementById("news"+a).style.display="none";	
		document.getElementById("but"+a).className="";
	}
	document.getElementById("news"+i).style.display="block";
	document.getElementById("but"+i).className="select";
}

function ChangeUrl( url ){
//   	window.location = form1.training.options[form1.training.selectedIndex].value;
   	window.location = url;
}

function showpasswordfield() {
	a=1;
	b=0;
	//items=new Array();
	while(document.getElementById("ww"+a)) {
		nu=document.getElementById("ww"+a);
		//items[b]=nu;
		a++;
		b++;
		if(nu.style.visibility=='hidden') {
			nu.style.visibility='visible';
		} else if(nu.style.visibility=='visible') {
			nu.style.visibility='hidden';
		} else {
			nu.style.visibility='visible';
		}
	}
	//item=document.getElementsByClassName('wachtwoordvergeten');
	//aantal=items.length;
	//alert(aantal);
	/*for(a=0; a<aantal; a++) {
		nu=items[a].style.display;
		if(nu=='none') {
			items[a].style.display='table-row';
		} else if(nu=='table-row') {
			items[a].style.display='none';
		} else {
			items[a].style.display='table-row';
		}
	}*/
}

document.getElementsByClassName = function(clsName){
    var retVal = new Array();
    var elements = document.getElementsByTagName("*");
    for(var i = 0;i < elements.length;i++){
        if(elements[i].className.indexOf(" ") >= 0){
            var classes = elements[i].className.split(" ");
            for(var j = 0;j < classes.length;j++){
                if(classes[j] == clsName)
                    retVal.push(elements[i]);
            }
        }
        else if(elements[i].className == clsName)
            retVal.push(elements[i]);
    }
    return retVal;
}