function popup( loc, name, width, height, scrollable ) {
	prop = "width=" + width + ", height=" + height + ", status=no, resizable=no, menu=no, scrollbars=";
	
	if( scrollable ) prop = prop.concat( "yes" );
	else prop = prop.concat( "no" );	

	new_window = window.open( loc, name, prop );
	
	if( new_window.focus ) {
		new_window.focus();
	}
}

function submitForm1() {
	v = document.form.szivesen_latna.value;
	if( v != "" ) {
		popup('popup_szivesen_latna.php?person=' + v, 'popup2', 420, 350, false);
	}
	document.form.szivesen_latna.selectedIndex = 0;
}

function submitForm2() {
	v = document.form.javasolt_vendeg.value;
	if( v != "" ) {
		popup('popup_javasolt_vendeg.php?guest=' + v, 'popup2', 420, 350, false);
	}
	document.form.javasolt_vendeg.value = "";
}

function submitJelentkezes( item ) {
	item.value = "   Várj...   ";
	item.disabled = true;

	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if( !filter.test( document.form.email.value ) ) {
		alert( "Nem adtál meg helyes e-mail címet!" );
		item.value = "   Mehet   ";
		item.disabled = false;
	} else {
		document.form.submit();
	}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		head_menu_03_over = newImage("{$imageurl}head_menu_03-over.gif");
		head_menu_05_over = newImage("{$imageurl}head_menu_05-over.gif");
		head_menu_07_over = newImage("{$imageurl}head_menu_07-over.gif");
		head_menu_09_over = newImage("{$imageurl}head_menu_09-over.gif");
		head_menu_11_over = newImage("{$imageurl}head_menu_11-over.gif");
		head_menu_13_over = newImage("{$imageurl}head_menu_13-over.gif");
		head_menu_15_over = newImage("{$imageurl}head_menu_15-over.gif");
		preloadFlag = true;
	}
}