function valaszto(x)
		{
			
			m = document.getElementById("megye");
			k = document.getElementById("kerulet");
			while (k.firstChild) { k.removeChild(k.firstChild); }
			while (m.firstChild) { m.removeChild(m.firstChild); }
			
			if (x == 0)
			{
				k.style.display="inline";
				m.style.display="none";
				
				for (a=0;a<ker.length;a++)
				{
					if (a >= 3) text = document.createTextNode(ker[a]+". "+dist);
					else text = document.createTextNode(ker[a]);
					elem = document.createElement("OPTION");
					if (a == 0) elem.value = "";
					if (a == 1) elem.value = "buda";
					if (a == 2) elem.value = "pest";
					if (a >= 3) elem.value = a-2;
					elem.appendChild(text);
					k.appendChild(elem);
				}
			}
			if (x == 1)
			{
				m.style.display="inline";
				k.style.display="none";
				
				for (a=0;a<mgye.length;a++)
				{
					text = document.createTextNode(mgye[a]);
					elem = document.createElement("OPTION");
					if (a == 0) elem.value=0;
					if (a >= 1) elem.value=a+1;
					elem.appendChild(text);
					m.appendChild(elem);
				}
			}
			if (x == 2)
			{
				k.style.display="inline";
				m.style.display="none";
				
				for (a=0;a<bltn_mgye.length;a++)
				{
					text = document.createTextNode(bltn_mgye[a]);
					elem = document.createElement("OPTION");
					if (a == 0) elem.value=49;
					if (a >= 1) elem.value=a+49;
					elem.appendChild(text);
					k.appendChild(elem);
				}
			}
		}