function loadData()
    {
    document.getElementById('grafiko_aukerak').value= document.getElementById('grafauk').value;
    }
    window.onload = loadData;

function eusubmit()
    {
    document.euform.submit();
    }
function essubmit()
    {
    document.esform.submit();
    }
function casubmit()
    {
    document.caform.submit();
    }
function glsubmit()
    {
    document.glform.submit();
    }

function showLayer(x) {
  	if (document.getElementById("grafikoa").style.visibility=="visible"){
  		document.getElementById("grafikoa").style.visibility="hidden";
        document.getElementById("grafikoen-botoia1").style.visibility="visible";
        document.getElementById("resultados-busqueda").className="grafikoa-off";
  	}else{
  		document.getElementById("grafikoa").style.visibility="visible";
        document.getElementById("grafikoen-botoia1").style.visibility="hidden";
        document.getElementById("resultados-busqueda").className="grafikoa-on";
  	}
  }


function hide_beste_batzuk(x){
    if (document.getElementById("beste_batzuk").style.display=="inline"){
	document.getElementById("beste_batzuk").style.display="none";

       
    }else{
	document.getElementById("beste_batzuk").style.display="inline";

    }
}

function count_articles(){
    var kont = 0;
    var emaitzen_taula = document.getElementById('emaitzen-taula');
    var trak = emaitzen_taula.getElementsByTagName('tr');
    for(var i=0;i<trak.length;i++){
	if (trak[i].className == 'artikulua'){
	    kont += 1;
	}
    }
    var artikulu_kop = document.getElementById('artikulu_kop');
    if (artikulu_kop != null){
	artikulu_kop.innerHTML = kont;
    }
    
}

function zero_articles(){
     var artikulu_kop = document.getElementById('artikulu_kop');
     if (artikulu_kop.innerHTML == '' || artikulu_kop == null){
	 artikulu_kop.innerHTML = '0';
     }
     
}

function change_chart_options(){
    
    var testuhitza2 = document.getElementById('testuhitza2');
    var kategoria2 = document.getElementById('kategoria2');

    var grafiko_aukerak = document.getElementById('grafiko_aukerak');
    
    if (testuhitza2.value == "" && kategoria2.value == ""){
	for(var i=0;i<grafiko_aukerak.length;i++){
            if (grafiko_aukerak.options[i].value == '2forma' || grafiko_aukerak.options[i].value == '2lema') {
                grafiko_aukerak.options[i].style.display = 'none';
		grafiko_aukerak.options[i].selected = false;
		grafiko_aukerak.options[0].selected = true;
            }
        }
    }
    
    if (testuhitza2.value != "" || kategoria2.value != ""){
        for(var i=0;i<grafiko_aukerak.length;i++){
            if (grafiko_aukerak.options[i].value == '2forma' || grafiko_aukerak.options[i].value == '2lema') {
                grafiko_aukerak.options[i].style.display = '';
            }
        }
    }
 }