var imagesToBlend = new Array();
imagesToBlend[0] = '/images/topimages/albricht1.jpg';
imagesToBlend[1] = '/images/topimages/albricht2.jpg';
imagesToBlend[2] = '/images/topimages/albricht3.jpg';
imagesToBlend[3] = '/images/topimages/albricht4.jpg';

var fotoFader = new fotoFader();
fotoFader.setImages(imagesToBlend);

window.onload = initAlbricht;


function initAlbricht()
{
//	replaceHeadersBasr();
	fotoFader.initFotoFader();
	startcatching();
}



// functions for lightbox alternative

function showBigPhoto(sFilename)
{
	oDarkener = document.getElementById("darkener");

	iDocWidth = document.body.offsetWidth;
	iDocHeight = document.body.offsetHeight;

	iScreenHeight = document.documentElement.clientHeight;

	if(iScreenHeight > iDocHeight) iDocHeight = iScreenHeight;

	oDarkener.style.width = iDocWidth + 'px';
	oDarkener.style.height = iDocHeight + 'px';

	var oPopin = document.createElement("div");
	oPopin.id = 'popin';
	document.body.appendChild(oPopin);

	oPopin.style.left = ((iDocWidth - 320) / 2) + 'px';
	oPopin.style.top = (((iScreenHeight - 320) / 2) + getScrollPos()) + 'px';
	oPopin.style.backgroundImage = 'url(/images/loading.gif)';

	loadImage(sFilename);
}

function checkImageLoaded()
{
	oImg = document.getElementById('newmainimage');
	if(oImg.complete)
	{
		iImageWidth = oImg.width;
		iImageHeight = oImg.height;

		oPopin = document.getElementById("popin");
		iDocWidth = document.body.offsetWidth;
		iScreenHeight = document.documentElement.clientHeight;

		oPopin.style.left = ((iDocWidth - (iImageWidth + 20)) / 2) + 'px';
		oPopin.style.top = (((iScreenHeight - (iImageHeight + 20)) / 2) + getScrollPos()) + 'px';
		oPopin.style.width = (iImageWidth + 20) + 'px';
		oPopin.style.height = (iImageHeight + 20) + 'px';
		oImg.style.visibility = 'visible';
	}
	else
	{
		setTimeout('checkImageLoaded()', 50);
	}
}

function loadImage(sFilename)
{
	if(!sFilename) return false;

	oPopin = document.getElementById("popin");

	sHTML = '<img src="'+sFilename+'" alt="" id="newmainimage" style="visibility:hidden;" onclick="closePhoto();" />';

	oPopin.innerHTML = sHTML;

	setTimeout('checkImageLoaded()', 50);
}

function getScrollPos()
{
	var ScrollTop = document.body.scrollTop;
	if (ScrollTop == 0)
	{
		if (window.pageYOffset)
		    ScrollTop = window.pageYOffset;
		else
		    ScrollTop = (document.body.parentElement) ? document.body.parentElement.scrollTop : 0;
	}
	return ScrollTop;
}

function closePhoto()
{
	oDarkener = document.getElementById("darkener");

	oDarkener.style.width = '0px';
	oDarkener.style.height = '0px';

	oPopin = document.getElementById("popin");
	if(oPopin) document.body.removeChild(oPopin);
}


function addEvent(hoo, wot, fun)
{
	if(document.addEventListener)
		hoo.addEventListener(wot, fun, null);
	else if(document.attachEvent)
		hoo.attachEvent('on' + wot, fun);
	else hoo['on' + wot] = fun;        
}

function catchEscape(e)
{
	e=(window.event)?window.event:e;
	if(e.keyCode == 27)
	{ 
		closePhoto();
	}

	return true;
}

function startcatching()
{
	addEvent(document, 'keyup', catchEscape);
}







// proper title replacement

function replaceHeadersBasr()
{
	aHeaders = document.getElementsByTagName("h1");
	for(i = 0; i < aHeaders.length; i++)
	{
		sText = aHeaders[i].textContent || aHeaders[i].innerText;
		sImg = "<img src=\"/images/header_cache/"+md5(sText+'header')+".png?settings=header&text="+urlencode(sText)+"\" alt=\""+sText+"\" />";
		aHeaders[i].innerHTML = sImg;
	}
}

// functions needed for basr

function urlencode(clearString)
{
	var output = '';
	var x = 0;
	clearString=clearString.toString();
	var regex=/(^[a-zA-Z0-9_.]*)/;
	while(x < clearString.length)
	{
		var match=regex.exec(clearString.substr(x));
		if(match!=null && match.length > 1 && match[1] != '')
		{
			output += match[1];
			x += match[1].length;
		}
		else
		{
			if(clearString[x] == ' ')
				output += '+';
			else
			{
				var charCode = clearString.charCodeAt(x);
				var hexVal = charCode.toString(16);
				output += '%' + (hexVal.length < 2?'0':'') + hexVal.toUpperCase();
			}
			x++;
		}
	}
	return output;
}

function md5(str)
{
	var xl;

	var rotateLeft = function (lValue, iShiftBits)
	{
		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
	};

	var addUnsigned = function (lX,lY)
	{
		var lX4,lY4,lX8,lY8,lResult;
		lX8 = (lX & 0x80000000);
		lY8 = (lY & 0x80000000);
		lX4 = (lX & 0x40000000);
		lY4 = (lY & 0x40000000);
		lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
		if (lX4 & lY4)
		{
			return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
		}
		if (lX4 | lY4)
		{
			if (lResult & 0x40000000)
			{
				return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
			}
			else
			{
				return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
			}
		}
		else
		{
			return (lResult ^ lX8 ^ lY8);
		}
	};

	var _F = function (x,y,z) { return (x & y) | ((~x) & z); };
	var _G = function (x,y,z) { return (x & z) | (y & (~z)); };
	var _H = function (x,y,z) { return (x ^ y ^ z); };
	var _I = function (x,y,z) { return (y ^ (x | (~z))); };

	var _FF = function (a,b,c,d,x,s,ac)
	{
		a = addUnsigned(a, addUnsigned(addUnsigned(_F(b, c, d), x), ac));
		return addUnsigned(rotateLeft(a, s), b);
	};

	var _GG = function (a,b,c,d,x,s,ac)
	{
		a = addUnsigned(a, addUnsigned(addUnsigned(_G(b, c, d), x), ac));
		return addUnsigned(rotateLeft(a, s), b);
	};

	var _HH = function (a,b,c,d,x,s,ac)
	{
		a = addUnsigned(a, addUnsigned(addUnsigned(_H(b, c, d), x), ac));
		return addUnsigned(rotateLeft(a, s), b);
	};

	var _II = function (a,b,c,d,x,s,ac)
	{
		a = addUnsigned(a, addUnsigned(addUnsigned(_I(b, c, d), x), ac));
		return addUnsigned(rotateLeft(a, s), b);
	};

	var convertToWordArray = function (str)
	{
		var lWordCount;
		var lMessageLength = str.length;
		var lNumberOfWords_temp1=lMessageLength + 8;
		var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
		var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
		var lWordArray=new Array(lNumberOfWords-1);
		var lBytePosition = 0;
		var lByteCount = 0;
		while ( lByteCount < lMessageLength )
		{
			lWordCount = (lByteCount-(lByteCount % 4))/4;
			lBytePosition = (lByteCount % 4)*8;
			lWordArray[lWordCount] = (lWordArray[lWordCount] | (str.charCodeAt(lByteCount)<<lBytePosition));
			lByteCount++;
		}
		lWordCount = (lByteCount-(lByteCount % 4))/4;
		lBytePosition = (lByteCount % 4)*8;
		lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
		lWordArray[lNumberOfWords-2] = lMessageLength<<3;
		lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
		return lWordArray;
	};

	var wordToHex = function (lValue)
	{
		var wordToHexValue="",wordToHexValue_temp="",lByte,lCount;
		for (lCount = 0;lCount<=3;lCount++)
		{
			lByte = (lValue>>>(lCount*8)) & 255;
			wordToHexValue_temp = "0" + lByte.toString(16);
			wordToHexValue = wordToHexValue + wordToHexValue_temp.substr(wordToHexValue_temp.length-2,2);
		}
		return wordToHexValue;
	};

	var x=[],
	k,AA,BB,CC,DD,a,b,c,d,
	S11=7, S12=12, S13=17, S14=22,
	S21=5, S22=9 , S23=14, S24=20,
	S31=4, S32=11, S33=16, S34=23,
	S41=6, S42=10, S43=15, S44=21;

	str = utf8_encode(str);
	x = convertToWordArray(str);
	a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;

	xl = x.length;
	for (k=0;k<xl;k+=16)
	{
		AA=a; BB=b; CC=c; DD=d;
		a=_FF(a,b,c,d,x[k+0], S11,0xD76AA478);
		d=_FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
		c=_FF(c,d,a,b,x[k+2], S13,0x242070DB);
		b=_FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
		a=_FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
		d=_FF(d,a,b,c,x[k+5], S12,0x4787C62A);
		c=_FF(c,d,a,b,x[k+6], S13,0xA8304613);
		b=_FF(b,c,d,a,x[k+7], S14,0xFD469501);
		a=_FF(a,b,c,d,x[k+8], S11,0x698098D8);
		d=_FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
		c=_FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
		b=_FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
		a=_FF(a,b,c,d,x[k+12],S11,0x6B901122);
		d=_FF(d,a,b,c,x[k+13],S12,0xFD987193);
		c=_FF(c,d,a,b,x[k+14],S13,0xA679438E);
		b=_FF(b,c,d,a,x[k+15],S14,0x49B40821);
		a=_GG(a,b,c,d,x[k+1], S21,0xF61E2562);
		d=_GG(d,a,b,c,x[k+6], S22,0xC040B340);
		c=_GG(c,d,a,b,x[k+11],S23,0x265E5A51);
		b=_GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
		a=_GG(a,b,c,d,x[k+5], S21,0xD62F105D);
		d=_GG(d,a,b,c,x[k+10],S22,0x2441453);
		c=_GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
		b=_GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
		a=_GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
		d=_GG(d,a,b,c,x[k+14],S22,0xC33707D6);
		c=_GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
		b=_GG(b,c,d,a,x[k+8], S24,0x455A14ED);
		a=_GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
		d=_GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
		c=_GG(c,d,a,b,x[k+7], S23,0x676F02D9);
		b=_GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
		a=_HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
		d=_HH(d,a,b,c,x[k+8], S32,0x8771F681);
		c=_HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
		b=_HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
		a=_HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
		d=_HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
		c=_HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
		b=_HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
		a=_HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
		d=_HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
		c=_HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
		b=_HH(b,c,d,a,x[k+6], S34,0x4881D05);
		a=_HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
		d=_HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
		c=_HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
		b=_HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
		a=_II(a,b,c,d,x[k+0], S41,0xF4292244);
		d=_II(d,a,b,c,x[k+7], S42,0x432AFF97);
		c=_II(c,d,a,b,x[k+14],S43,0xAB9423A7);
		b=_II(b,c,d,a,x[k+5], S44,0xFC93A039);
		a=_II(a,b,c,d,x[k+12],S41,0x655B59C3);
		d=_II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
		c=_II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
		b=_II(b,c,d,a,x[k+1], S44,0x85845DD1);
		a=_II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
		d=_II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
		c=_II(c,d,a,b,x[k+6], S43,0xA3014314);
		b=_II(b,c,d,a,x[k+13],S44,0x4E0811A1);
		a=_II(a,b,c,d,x[k+4], S41,0xF7537E82);
		d=_II(d,a,b,c,x[k+11],S42,0xBD3AF235);
		c=_II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
		b=_II(b,c,d,a,x[k+9], S44,0xEB86D391);
		a=addUnsigned(a,AA);
		b=addUnsigned(b,BB);
		c=addUnsigned(c,CC);
		d=addUnsigned(d,DD);
	}

	var temp = wordToHex(a)+wordToHex(b)+wordToHex(c)+wordToHex(d);

	return temp.toLowerCase();
}

function utf8_encode ( argString )
{
	var string = (argString+'').replace(/\r\n/g, "\n").replace(/\r/g, "\n");

	var utftext = "";
	var start, end;
	var stringl = 0;

	start = end = 0;
	stringl = string.length;
	for (var n = 0; n < stringl; n++)
	{
		var c1 = string.charCodeAt(n);
		var enc = null;

		if (c1 < 128)
		{
			end++;
		}
		else if (c1 > 127 && c1 < 2048)
		{
			enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
		}
		else
		{
			enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
		}
		if (enc !== null)
		{
			if (end > start)
			{
				utftext += string.substring(start, end);
			}
			utftext += enc;
			start = end = n+1;
		}
	}

	if (end > start)
	{
		utftext += string.substring(start, string.length);
	}

	return utftext;
}