function addEvent(obj, evType, fn){
	if (obj.addEventListener){
		obj.addEventListener(evType, fn, false);
	return true;
	}
	else if (obj.attachEvent){
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	}
	else{
   		return false;
 	}
}

(function(){
 /*Use Object Detection to detect IE6*/
	var  m = document.uniqueID /*IE*/
	&& document.compatMode  /*>=IE6*/
	&& !window.XMLHttpRequest /*<=IE6*/
	&& document.execCommand;
	try{
		if(!!m){
			m("BackgroundImageCache", false, true) /* = IE6 only */ 
		}
	}
	catch(oh){};
})();

function jsemail(email) {
	for(i=email.length-1; i>=0; i--)
		document.write(email.charAt(i));
}

function jsemaillink(email, link, classname) {
	document.write('<a href="'+link+'"'+(classname!=undefined&&classname!='' ? ' class="'+classname+'"' : '')+'>');
	for(i=email.length-1; i>=0; i--)
		document.write(email.charAt(i));
	document.write('</a>');
}

function jsmailto(emailto, email, classname) {
	document.write('<a href="');
	for(i=emailto.length-1; i>=0; i--)
		document.write(emailto.charAt(i));
	document.write('"'+(classname!=undefined&&classname!='' ? ' class="'+classname+'"' : '')+'>');
	for(i=email.length-1; i>=0; i--)
		document.write(email.charAt(i));
	document.write('</a>');
}

function jsmailtolink(email, cim, classname) {
	document.write('<a href="');
	for(i=email.length-1; i>=0; i--)
		document.write(email.charAt(i));
	document.write('"'+(classname!=undefined&&classname!='' ? ' class="'+classname+'"' : '')+'>'+cim+'</a>');
}

function chr(c) {
	var h = c.toString(16);
	if (h.length==1)
		h = '0'+h;
	h = unescape('%'+h);
	return h;
}

/*
function overflowautoinit(){
	var tags=document.getElementsByTagName("div");
	for (i=0; i<tags.length; i++) {
		tag=tags[i];
		if(tag.className=="overflowautox") {
			tag.style.height=(tag.offsetHeight+tag.offsetHeight-tag.clientHeight)+'px';
		} else if (tag.className=="overflowautoy") {
			tag.style.width=(tag.offsetWidth+tag.offsetWidth-tag.clientWidth)+'px';
		}
	}
}
addEvent(window, 'load', overflowautoinit);
*/

function mind(stat) {
	var c=mind.arguments&&mind.arguments.length>1 ? mind.arguments[1] : '';
	inputs = document.getElementsByTagName("input");
	for (i=0; i<inputs.length; i++)
		if (inputs[i].type=="checkbox" && (c=='' || (' '+inputs[i].className+' ').indexOf(' '+c+' ')!=-1))
			inputs[i].checked = stat==1 ? true : (stat==0 ? false : !inputs[i].checked);
}

/* használat:
ajaxload({get:'ajax.php',post:'valtozo1=ertek1&valtozo2=ertek2',
	onload:function(xmlHttpReq) {
		document.getElementById('content').innerHTML=xmlHttpReq.responseText;
	}
});
ajaxload({get:'ajax.php',post:'valtozo1=ertek1&valtozo2=ertek2',content:'tartalom'});
*/
function ajaxload(obj) {
	var xmlHttpReq=false;
	if (window.XMLHttpRequest) xmlHttpReq=new XMLHttpRequest();
	// IE
	else if (window.ActiveXObject) xmlHttpReq=new ActiveXObject("Microsoft.XMLHTTP");
	xmlHttpReq.open("POST", obj.get ? obj.get : 'ajax.php', true);
	xmlHttpReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlHttpReq.onreadystatechange=function() {
		if (xmlHttpReq.readyState==4) {
			if (xmlHttpReq.status==200) {
				if (obj.onload)	obj.onload(xmlHttpReq);
				if (obj.contentelement) obj.contentelement.innerHTML=xmlHttpReq.responseText;
			}
			else {
				if (obj.onerror) obj.onerror(xmlHttpReq);
				if (obj.contentelement) obj.contentelement.innerHTML='Hiba a kapcsolatban!';
			}
        }
	}
	if (obj.onstart) obj.onstart();
	if (obj.content) obj.contentelement = document.getElementById(obj.content);
	if (obj.contentelement) obj.contentelement.innerHTML='<img src="art/indicator.gif" alt="" />';
	xmlHttpReq.send(obj.post ? obj.post : '');
}

function $(id) {
	return document.getElementById(id);
}