function fenster(url, name, breite, hoehe, links, oben)
{
if (!links){
	links = (screen.availWidth - breite) / 2;
}
if (!oben){
	oben = (screen.availHeight - hoehe) / 2;
}
window.open(url, name, 'width='+breite+',height='+hoehe+'resizeable=yes,scrollbars=no,top='+oben+',left='+links);
}

function fensteres(url, name, breite, hoehe, links, oben)
{
if (!links){
	links = (screen.availWidth - breite) / 2;
}
if (!oben){
	oben = (screen.availHeight - hoehe) / 2;
}
window.open(url, name, 'width='+breite+',height='+hoehe+',resizable=yes,top='+oben+',left='+links+',scrollbars=yes');
}


function picpop(image, name, caption, width, height, left, top) {
	
	var popper = "/picpop.php"; 
	
	if (!left){
		left = (screen.availWidth - width) / 2;
	}	
	if (!top){
		top = (screen.availHeight - height) / 2;
	}
	
	url =  popper + "?image= " + image + "&caption=" + caption;
	
	window.open(url, name, 'width='+width+',height='+height+',resizable=yes,top='+top+',left='+left+',scrollbars=no');
	return true;
}




// ====================================================================
//       URLEncode and URLDecode functions
//
// Copyright Albion Research Ltd. 2002
// http://www.albionresearch.com/
//
// You may copy these functions providing that 
// (a) you leave this copyright notice intact, and 
// (b) if you use these functions on a publicly accessible
//     web site you include a credit somewhere on the web site 
//     with a link back to http://www.albionresarch.com/
//
// If you find or fix any bugs, please let us know at albionresearch.com
//
// SpecialThanks to Neelesh Thakur for being the first to
// report a bug in URLDecode() - now fixed 2003-02-19.
// ====================================================================
function URLEncode(url)
{
	// The Javascript escape and unescape functions do not correspond
	// with what browsers actually do...
	var SAFECHARS = "0123456789" +					// Numeric
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	// Alphabetic
					"abcdefghijklmnopqrstuvwxyz" +
					"-_.!~*'()";					// RFC2396 Mark characters
	var HEX = "0123456789ABCDEF";

	var plaintext = document.URLForm.F1.value;
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				// x-www-urlencoded, rather than %20
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
			    alert( "Unicode Character '" 
                        + ch 
                        + "' cannot be encoded using standard URL encoding.\n" +
				          "(URL encoding only supports 8-bit characters.)\n" +
						  "A space (+) will be substituted." );
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
	} // for

	document.URLForm.F2.value = encoded;
	return false;
};