var xmlhttp=false;

if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
	xmlhttp = new XMLHttpRequest();
}
if (window.ActiveXObject) {xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");}
function getData(source) {
	var target 	= document.getElementById('types');
	var merk_id	= source.options[source.selectedIndex].value;
	var text	= '';
	while(target.options.length>0)
		target.removeChild(target.options[target.options.length-1]);	
	xmlhttp.open("GET", "/wp-forum/get_data.php?merk_id="+merk_id);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			text = xmlhttp.responseText;
			if (text != ''){
				var vals = text.split('\n'); 
				var option;
				for(var i=0; i<vals.length-1; i=i+2){ 
					option = document.createElement('option'); 
					option.setAttribute('value',vals[i]); 
					option.appendChild(document.createTextNode(vals[i+1])); 
					target.appendChild(option); 
				} 		
			}			
		}
	}
	target.selectedIndex = 0;
	xmlhttp.send(null);	
}
function vote(punten,foto_id,user_id){
	var text	= '';
	xmlhttp.open("GET", "/wp-forum/add_vote.php?foto_id="+foto_id+"&punten="+punten+"&user_id="+user_id);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			text = xmlhttp.responseText;
			if (text != ''){
				document.getElementById('vote').innerHTML = text;
			}			
		}
	}
	xmlhttp.send(null);			
}
function moreadmin(){
	if (document.getElementById('admin').style.display!='none') document.getElementById('admin').style.display = 'none';
		else
			document.getElementById('admin').style.display = 'block';
}

function moreinfo(){
	if (document.getElementById('moreinfo').style.display!='none') document.getElementById('moreinfo').style.display = 'none';
		else
			document.getElementById('moreinfo').style.display = 'block';
}
function able(field,target){
	var value = field.value;
	if (value.length != 0) document.getElementById(target).disabled = true;
		else document.getElementById(target).disabled = false;
	return;
}