function t(){ return new Date().getTime(); }

function reload(id){
	if($(id)) $(id).contentWindow.location.reload();
	else if($('iframe'+id)){
		$('iframe'+id).contentWindow.location.reload();
	}else{
		iframes = document.getElementsByTagName('iframe');
		for(i=0;i<iframes.length;i++){ // try each subframe
			if(iframes[i].contentWindow.reload){
				iframes[i].contentWindow.reload(id);
			}
		}
	}
}

function addrel(getsel,id){
	var frame = null;

	if($(id)) $(id).src = $(id).contentWindow.location.href + '&addrel='+getsel;
	else{
		iframes = document.getElementsByTagName('iframe');
		for(i=0;i<iframes.length;i++) if(iframes[i].contentWindow.addrel) iframes[i].contentWindow.addrel(getsel,id);
	}

}

function VizSet(object_id, property_id, value){

	var fid = 'F['+object_id+']['+property_id+']';

	if($(fid)){
		$(fid).value = value;
	}else{
		var cls = document.getElementsByClassName('i'+object_id+'.'+property_id);
		if(cls.length>0) cls[0].innerHTML = value;
	}

	iframes = document.getElementsByTagName('iframe');
	for(i=0;i<iframes.length;i++) if(iframes[i].contentWindow.VizSet){ // try each subframe
		iframes[i].contentWindow.VizSet(object_id, property_id, value);
	}
}

function ym(y){
	if($('menu')&&y<$('menu').offsetHeight) y = $('menu').offsetHeight;
	return y;
}

function mem(Var, Val){
	var xhr = new XMLHttpRequest();
	xhr.open("GET", "mem.php?"+encodeURIComponent(Var)+"="+encodeURIComponent(Val));
	xhr.onreadystatechange=function() {
		if (xhr.readyState==4){
			eval(xhr.responseText);
		}
	}
	xhr.send(null);
}

function xmlhttp_action(url){
	var xmlhttp = new XMLHttpRequest();
	xmlhttp.open("GET", url);
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4){
			eval(xmlhttp.responseText);
			actioning = false;
		}
	}
	xmlhttp.send(null);
}

function setfocus(){
	if(typeof resizegrid == 'function') resizegrid();
	var iframes = document.getElementsByTagName('iframe');
	for(i=0;i<iframes.length;i++) if(iframes[i].contentWindow.setfocus){
		iframes[i].contentWindow.setfocus();
	}
}

function revframe(tabid){
	if($(tabid).tagName=='IFRAME'){
		var iframes = []; iframes.push($(tabid));
	}else
		var iframes = $(tabid).getElementsByTagName('iframe');
	// maar wat als de tab het frame IS hashtag gebleven.
	for(i=0;i<iframes.length;i++){
		if(iframes[i].dataset.src && !iframes[i].src) iframes[i].src = iframes[i].dataset.src;
		else iframes[i].contentWindow.resizegrid();
	}
}

function toggleState(sid, oid){
	eval('var cur = curState'+sid);
	document.getElementById(oid).classList.add('state'+sid);
	if(cur>0){
		document.getElementById(cur).classList.remove('state'+sid);
		eval('curState'+sid+' = 0;');
	}
	if(cur!=oid){
		eval('curState'+sid+' = '+oid+';');
	}
}

function toggleMyState(ref, sid){
	if(ref.classList.contains('state'+sid)){
		ref.classList.remove('state'+sid);
	}else{
		ref.classList.add('state'+sid);
	}
}

function toggleMulti(pid,val){
	var Fs = document.getElementsByName('F[0]['+pid+'][]');
	var on  = false;
	for(f=0;f<Fs.length;f++){
		if(Fs[f].value==val){ Fs[f].remove(); on = true; }
	}
	if(!on){
		var elm = document.createElement('INPUT');
		elm.type = 'hidden';
		elm.name = 'F[0]['+pid+'][]';
		elm.value = val;
		document.forms[0].appendChild(elm);	
	}
}