var prIMG=new Array();
function preloadIMG (img) {
	c=0;
	for (i=0;i<img.length;i++) {
		prIMG[c]=new Image();
		prIMG[c].src=img[i];
		c++;
	}
}
function findObj (img) {
	for (i=0;i<prIMG.length;i++) {
		//alert(prIMG[i].src);
		if (prIMG[i].src==img) {
			return prIMG[i];
		}
	}
	return null;
}
function chbg (obj, img) {
	imgObj=findObj(img);
	if (imgObj!=null)	obj.style.backgroundImage="url('" +imgObj.src+"')";
}
function klikk(url) {
	document.location=url;
}

function char_count (obj, max) {
	if (obj.value.length >= max) {
		alert("Maximum " +max+ " karakter hosszú lehet a szöveg!");
		obj.value=obj.value.substr(0, max-1);
		return false;
	}
	
	return true;
}

function popup(url,title,w,h) {
	//alert(url);
	pwin=window.open(url, title, "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width="+w+",height="+h);
	pwin.focus();
}

function addLoadEvent (func) {
	var oldonload=window.onload;
	if (typeof window.onload != 'function') {
		window.onload=func;
	}
	else {
		window.onload=function() {
			oldonload();
			func();
		}
	}
}

function form_submit (form, mezok, obj, url) {
	data="";
	for (i in mezok) {
		data += "&" +mezok[i]+ "=" +form[mezok[i]].value;
	}
	//alert(data);
	//alert(typeof obj);
	obj.load(url, "POST", data);
}