function kep_valt(mit,hova) {
		document.getElementById(hova).innerHTML='<img src="'+mit+'" border="0">';
	}
	function position() {
		if (!document.getElementById) return;
		szelesseg = ((screen.width/2)-170);
		magassag = ((screen.height/2));
		document.getElementById('help').style.left=szelesseg;
		document.getElementById('help').style.top=magassag;
	}
	function display() {
		if (!document.getElementById) return;
		if (document.getElementById('help').style.display) {
			document.getElementById('help').style.display='none';
		} else {
			document.getElementById('help').style.display='block';
			position();
		}
	}
	//window.onload=display;