var temp;

function hoverbut(what) {
//	global temp;
	temp = document.all[what].style.background;
	document.all[what].style.background='#404040';
//	document.all[what].style.src="hovered";
//	document.all[what].style.color='#000000';
}

function unhoverbut(what) {
//	global temp;
	//temp="#000000";
	document.all[what].style.background=temp;
}

function imgview(obras,szerokosc,wysokosc,title,alt)
{
	if (!title) {
		title = "ImageView";
	}
	if (!alt) {
		alt = "click to close";
	} else {
		alt += "&#13(click to close)";
	}
	
	var szer = parseInt(szerokosc) + 10;
	var wys = parseInt(wysokosc) + 10;
	topp = (screen.height/2 - (parseInt(wys))/2);
	lefft = (screen.width/2 - (parseInt(szer))/2);
	obraz=open("","DisplayWindow","toolbar=no,directories=no,menubar=no,scrollbars=yes,resizable=no,width=" + szer.toString() + ",height=" + wys.toString() + ",top=" + topp + ",left=" + lefft + "");
	zmienna=(obras);
		obraz.document.write("<HTML><HEAD><TITLE>" + title + "</TITLE>\n");
		//obraz.document.write("<link rel='STYLESHEET' type='text/css' href='stylesheet.css'><script language='JavaScript1.2' src='rightclick.js' type='text/javascript'></script></HEAD>\n");
		obraz.document.write("</HEAD>");
		obraz.document.write("<body style=\"margin:5px; background:#000000; color:#D0D0D0;\">\n");
		obraz.document.write("<CENTER><A HREF=\"javascript:;\" OnClick=\"javascript:window.close()\"><IMAGE SRC=");
		obraz.document.write(obras);
		obraz.document.write(" BORDER=0 ALT='" + alt + "'></BODY></HTML>\n");
		obraz.document.close();
}

function changeScene(direction, allScenes) {
	var imgSource = document.images["scene"].src;
	var firstPart = imgSource.substr(imgSource.lastIndexOf("/")+1);
	var imageNumber = firstPart.substr(firstPart.lastIndexOf("_")+1);
	var imageExtension = imageNumber.substr(imageNumber.lastIndexOf(".")+1);

	imageNumber = imageNumber.substr(0, imageNumber.lastIndexOf("."));
	firstPart = firstPart.substr(0, firstPart.lastIndexOf("_")+1);

	imageNumber = parseInt(imageNumber);
	if (direction < 0) {
		imageNumber = imageNumber - 1;
		if (imageNumber == 0) {
			imageNumber = allScenes;
		}
	} else {
		imageNumber = imageNumber + 1;
		if (imageNumber == allScenes + 1) {
			imageNumber = 1;
		}
	}
	
	document.forms["imageNumber"].number.value = imageNumber;

	var newImageNumber = imageNumber.toString();
	if (imageNumber < 10) {
		newImageNumber = "0" + newImageNumber;
	}

	newImgSource = firstPart + newImageNumber + "." + imageExtension;
	document.images["scene"].src = newImgSource;

}
