function ertekek() {
	var ie=document.all && !window.opera
	var domclientWidth=document.documentElement && parseInt(document.documentElement.clientWidth) || 100000 //Preliminary doc width in non IE browsers
	this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
	this.scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
	this.scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
	this.docwidth=(ie)? this.standardbody.clientWidth : (/Safari/i.test(navigator.userAgent))? window.innerWidth : Math.min(domclientWidth, window.innerWidth-16)
	this.docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
	this.docheightcomplete=(standardbody.offsetHeight>standardbody.scrollHeight)? standardbody.offsetHeight : standardbody.scrollHeight
	this.ivheight=this.docheightcomplete
}


function takaro(hogy) {
	ertekek()
	if(hogy == 'o') {
		var eltunt = document.getElementsByTagName('object');
		$('takaro').style.display = '';
		$('takaro').style.width = docwidth+"px";
		$('takaro').style.height = ivheight+"px";
		for (var i = 0; i < eltunt.length; i++) {
			eltunt[i].style.display = 'none';
		}
	} else {
		var eltunt = document.getElementsByTagName('object');
		$('takaro').style.display = 'none';
		$('takaro').style.width = "1px";
		$('takaro').style.height = "1px";
		for (var i = 0; i < eltunt.length; i++) {
			eltunt[i].style.display = '';
		}
	}
}
function window_open(url,szel,mag) {
	takaro('o');
	if(szel == 0) szel = 800;
	if(mag == 0) mag = 500;
	var tX = (scroll_top)+((docheight/2)-(mag/2));
	var lX = (scroll_left)+((docwidth/2)-(szel/2));
	open_close('tartalom_ablak');
	$('tartalom_ablak').style.top = tX+"px";
	$('tartalom_ablak').style.left = lX+"px";
	$('tartalom_ablak').style.width = szel+"px";
	$('tartalom_ablak').style.height = mag+"px";
	$('tartalom_a').style.height = mag*1 - 30+"px";
	spl(url,'tartalom_a');
}
function window_close() {	
	/*open_close('tartalom_ablak');*/
	if($('tartalom_ablak').style.display == '') {
		takaro('c');
		/*$('tartalom_ablak').style.display == 'none';*/
		open_close('tartalom_ablak');
		$('tartalom_ablak').style.top = "1px";
		$('tartalom_ablak').style.left = "1px";
		$('tartalom_ablak').style.width = "1px";
		$('tartalom_ablak').style.height = "1px";
		$('tartalom_a').innerHTML = '<h4>Tartalom betöltése...</h4>';
	}
}
function kep(url,szel,mag) {
	var kepurl = "kepmw.php?kep="+url+"";
	var sz = szel;
	var m = mag;
	window_open(kepurl,sz,m);
}