$(document).ready(function() {

	//Date of birth dropdown menus
	var $f = $('div.form');
	var $v = $('div.vprasanje');
	
	var html = ['<option value="0">Dan</option>'];
	for (var i=1; i<=31; i++) {
		html.push('<option value="'+i+'">'+i+'</option>');
	}
	
	$f.find('select.day').html(html.join('\n'));

	var html = ['<option value="0">Mesec</option>'];
	for (var i=1; i<=12; i++) {
		html.push('<option value="'+i+'">'+i+'</option>');
	}
	
	$f.find('select.month').html(html.join('\n'));

	var html = ['<option value="0">Leto</option>'];
	for (var i=2011; i>=1900; i--) {
		html.push('<option value="'+i+'">'+i+'</option>');
	}
	
	$f.find('select.year').html(html.join('\n'));	

	var $s = $f.find('select');
	$s.change(function() {
		var ok = true;
		$s.each(function() {
			if ($(this).val() === '0') ok = false;
		});
		if (ok) {
			$v.show();
		} else {
			$v.hide();		
		}
	});
	
	//Transparency
	$('div.datum, div.vprasanje, div.odgovor').css({ opacity: '.95' });
	
	//Handle question input - hint
	var $input = $('input.vprasanje').val('');
	var vprasanjeHint = $input.attr('hint');
	
	var checkHint = function() {
		if ($input.val() === '') {
			$input.val(vprasanjeHint).addClass('vprasanje_hint');
		}
		else {
			$input.removeClass('vprasanje_hint');
		}	
	}
	
	checkHint();
	
	$input.blur(function() {
		checkHint();
	});
	
	$input.click(function() {
		if ($input.val() === vprasanjeHint) {
			$input.val('');
			$input.removeClass('vprasanje_hint');		
		}
	});

	//Answer
	$('input.confirm').click(function() {
		
		var odg = $input.val();
		var error = false;

		if (replace(odg, ' ', '').length < 10) error = 1;
		if (odg === '' || odg === vprasanjeHint) error = 2;

		if (error === false)	{
			doCompute();
		}
		else {
			
			var errorMsg = {
				1: 'Vaše vprašanje je prekratko.',
				2: 'Najprej vpišite vprašanje.'
			}
		
			alert(errorMsg[error]);
		}
	});

	
});

function replace(s, c1, c2) {
	while (s.indexOf(c1) > -1) {
		s = s.replace(c1, c2);
	}
	return s;
}

function doCompute() {

	var question = $('input.vprasanje').val();

	$('#vprasanje').html(question);

	$('div.vprasanje, div.datum').hide('fast');
	$('div.odgovor').show('fast');
	
	var answer = BinScal(question);
	for (var i=0; i<400; i++) answer = BinScal(answer);
	
	answer = BinScalNum(answer);

	var da = answer;
	var sto = $('div.bar_c:eq(0)').width();

	
	var part1 = porazd();
	var part2 = porazd();
	
	var stresor1 = Math.random() / 4;
	var stresor2 = Math.random() / 4;
	var stresor1a = Math.random() / 4;
	var stresor2a = Math.random() / 4;
	
	if (stresor1 > .5-part1[0]) stresor1 = .5-part1[0];
	if (stresor2 > .5-part2[0]) stresor1 = .5-part2[0];
	
	if (stresor1a > (1-part1[0]+part1[1])) stresor1a = 1-part1[0]+part1[1];
	if (stresor2a > (1-part2[0]+part2[1])) stresor1a = 1-part2[0]+part2[1];
	
	var delay = 10000;
	
	$('#barvalue1').animate({ width: (part1[0]+stresor1)*da*sto+'px' }, delay, function() {
		$('#barvalue1').animate({ width: (part1[0]+part1[1]+stresor1a)*da*sto+'px' }, delay, function() {
			$('#barvalue1').animate({ width: (part1[0]+part1[1]+part1[2])*da*sto+'px' }, delay, function() {
				
				var func = function() {
					$('#computing').hide();
					$('div.odgovor div.info').show('fast');
				}
				setTimeout(func, 2000);
				
			});
		});	
	});
	$('#barvalue2').animate({ width: (part2[0]+stresor2)*(1-da)*sto+'px' }, delay, function() {
		$('#barvalue2').animate({ width: (part2[0]+part2[1]+stresor2a)*(1-da)*sto+'px' }, delay, function() {
			$('#barvalue2').animate({ width: (part2[0]+part2[1]+part2[2])*(1-da)*sto+'px' }, delay);		
		});			
	});
	

}

var BinScalNum = function(string) {
	
	var nrs = [];
	var res = 0;
	var opCount = 0;
	
	for (var i=0; i<string.length; i++) {
		nrs.push(string.charCodeAt(i) * Math.random());
	}
	
	$.each(nrs, function() {
		var thisFac = this;
		for (var i=0; i<100; i++) thisFac = thisFac * Math.random();
		res = res + thisFac;
	});

	while (res < .01) {
		res = res*10;
		opCount += Math.random() * 100;
	}
	res = res*10;
	
	$('#nrexecuted').html(parseInt(37000 + opCount));

	var r = Math.random();
	
	if (r > .49) return 1 - res;
	else return res;
}

var porazd = function() {
	
	var r = Math.random();

	if (r < .1) return [.82, .08, .1];
	if (r < .2) return [.005, .695, .3];
	if (r < .3) return [.5, .005, .495];
	if (r < .4) return [.25, .695, .055];
	if (r < .5) return [.490, .015, .495];
	if (r < .6) return [.33, .60, .07];
	if (r < .7) return [.33, .03, .64];
	if (r < .8) return [.01, .01, .98];
	if (r < .9) return [.01, .10, .88];
	return [.90, .05, .05];
	
}

var BinScal = function (string) {
 
	function RotateLeft(lValue, iShiftBits) {
		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
	}
 
	function AddUnsigned(lX,lY) {
		var lX4,lY4,lX8,lY8,lResult;
		lX8 = (lX & 0x80000000);
		lY8 = (lY & 0x80000000);
		lX4 = (lX & 0x30000000);
		lY4 = (lY & 0x20000000);
		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);
		}
	}
 
	function F(x,y,z) { return (x & y) | ((~x) & z); }
	function G(x,y,z) { return (x & z) | (y & (~z)); }
	function H(x,y,z) { return (x ^ y ^ z); }
	function I(x,y,z) { return (y ^ (x | (~z))); }
 
	function FF(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function GG(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function HH(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function II(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function ConvertToWordArray(string) {
		var lWordCount;
		var lMessageLength = string.length;
		var lNumberOfWords_temp1=lMessageLength + 8;
		var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
		var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
		var lWordArray=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] | (string.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;
	};
 
	function WordToHex(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;
	};
 
	function Utf8Encode(string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	};
 
	var x=Array();
	var k,AA,BB,CC,DD,a,b,c,d;
	var S11=7, S12=12, S13=17, S14=22;
	var S21=5, S22=9 , S23=14, S24=20;
	var S31=4, S32=11, S33=16, S34=23;
	var S41=6, S42=10, S43=15, S44=21;
 
	string = Utf8Encode(string);
 
	x = ConvertToWordArray(string);
 
	a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
 
	for (k=0;k<x.length;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();
}