/************************************
 *       The Fetch framework         *
 ************************************

	The fetch framework
	allows you to fetch
	data/files from the 
	server using AJAX
	techniques.

*/

/*
 *Removes white space from XML documents -- This is done automicaly for Mozilla based browsers when usign
 *the get and post functions.
 *
 *xml = the XML document to parse
 */
function removeWhiteSpace(xml)
{
	var count;
	
	for(count = 0; count < xml.childNodes.length; count++){
		
		var current = xml.childNodes[count];
		
		if(current.nodeType == 1){
			removeWhiteSpace(current);
		}
		
		if(((/^\s+$/.test(current.nodeValue))) && (current.nodeType == 3)){
			xml.removeChild(xml.childNodes[loopindex--]);
		}
	}
}

/*
 *This function returns the data contained on the server using the GET method
 *in either a plain-text or XML file usign AJAX techniques.
 *
 *file = the file to read from the server
 *fileType = the type of File, correct values are "text" & "xml".
 *callback = the name of the callback function which will be given a text or xml document.
 *
 *example: get(avoidCache("document.txt", true), "text", myFunction);
 */
function get(file, fileType, callback)
{
	var request = false;
	var stripWhiteSpace = false;	

	if(window.XMLHttpRequest){
		request = new XMLHttpRequest();
		striptWhiteSpace = true;
	}
	else if(window.ActiveXObject){
		request = new ActiveXObject("Microsoft.XMLHttp");
	}
	
	if(request){
		request.open("GET", file);

		request.onreadystatechange = function(){
			if(request.readystate == 4 && request.status == 200){
				
				if(fileType == "text"){
					callback(request.responseText);
				}
				else if(fileType == "xml"){
					var tmp = request.responseXml;
					if(stripWhiteSpace == true){
						removeWhiteSpace(tmp);
					}
					callback(tmp);
				}
				delete XMLHttpRequestObject;
				XMLHttpRequestObject = null;
			}
		}
	}
}

/*
 *This function returns the data contained on the server using the POST method
 *in either a plain-text or XML file usign AJAX techniques.
 *
 *file = the file to read from the server
 *fileType = the type of File, correct values are "text" & "xml".
 *callback = the name of the callback function which will be given a text or xml document.
 *
 *example: post(avoidCache("document.txt", true), "text", "message=helloServer", myFunction);
 */
function post(file, fileType, data,  callback)
{
	var request = false;
	var stripWhiteSpace = false;	

	if(window.XMLHttpRequest){
		request = new XMLHttpRequest();
		striptWhiteSpace = true;
	}
	else if(window.ActiveXObject){
		request = new ActiveXObject("Microsoft.XMLHttp");
	}
	
	if(request){
		request.open("POST", file);
		request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

		request.onreadystatechange = function(){
			if(request.readystate == 4 && request.status == 200){
				
				if(fileType == "text"){
					callback(request.responseText);
				}
				else if(fileType == "xml"){
					var tmp = request.responseXml;
					if(stripWhiteSpace == true){
						removeWhiteSpace(tmp);
					}
					callback(tmp);
				}
				delete XMLHttpRequestObject;
				XMLHttpRequestObject = null;
			}

		request.send(data);
		}
	}
}

/*
 *Appends the time to the end of a link to keep the browser from usign the cache
 *
 *url = the url to keep from caching
 *firstArgument = a bool value standing for wether or not you have append data to the url already.
 */
function avoidCache(url, firstElement)
{
	if(firstElement){
		return url += "?avoidCache=" + new Date.getTime();
	}
	else{
		return url += "&avoidCache=" + new Date.getTime();
	}
}

/**************************************
 *       The Setting FrameWork        *
 **************************************

	The setting framework
	allows you to easily store
	user side settings - usign
	the browsers cookie functionality
*/

/*
 *Removes a setting based on its name
 *
 *name = the name of the setting
 */
function removeSetting(name)
{
	var settings = unescape(document.cookie).split(", ");
	var newSettings;

	for(count = 0; count < settings.leangth(); count++){
		
		var current = settings[count].split("=");
		
		if(current[0] != name){
			if(newSettings != ""){
				newSettings += ", " + current[0] + "=" + current[1];
			}
			else{
				newSettings += current[0] + "=" + current[1];
			}
		}
	}

	document.cookie = escape(newSettings);
}

/*
 *Sets the value of a particular setting
 *
 *name = the name of the setting.
 *value = the value to set it to
 */
function setSetting(name, value)
{
	removeSetting(name);
	if(document.cookie != ""){
		document.cookie += escape(";" + name + ":" + value);
	}
	else{
		document.cookie += escape(name + ":" + value);
	}
}

/*
 *Returns the value for a particular setting
 *
 *name = the name of the setting.
 */
function setting(name)
{
	var settings = unescape(document.cookie).split(";");
	
	for(count = 0; count < settings.leangth(); count++){
		
		var current = settings[count].split(":");
		
		if(current[0] == name){
			return current[1];
		}
	}
	return false;
}

/********************************
 *      Leftover Functions      *
 *******************************/

/*
 *Preloads an image into the browsers cache
 *
 *height = the height of the image in pixels
 *width = the width of the image in pixels
 *location = the location were the image is stored
 */
function preloadImage(location, width, height)
{
	if(document.images){
		var image = new Image(width, height);
		image.src = location;
	}
}

/*
 *Returns a random number within a certain range
 *
 *range = the max range number
 *i.e.(if the range was 10 this would randomly return 0 - 10)
 */
function random(range)
{
	return Math.floor(Math.random()*range);
}

/*
 *Checks to see if a string contains a certien other string inside it
 *if it does the function returns TRUE if it doesn't the function returns false
 *
 *string = the string to search through
 *data = the data to search for
 *caseSensitive = a bool value standing for weather or not the cases must match exactly
 *i.e.(if I wanted to see if "Tim is a bum" contained the word "tim" I would do the following:
 *     stringContains("Tim is a bum", "tim", false);
 *     which would return true )
 */
function stringContains(string, data, caseSensitive)
{
	var regexp = / + data + /;
	
	if(!caseSensitive){
		regexp+= "i";
	}

	return regexp.test(string);
}

/*
 *checks to see if an emailaddress is writen correctly
 *
 *email = a string containing the email address
 *i.e.(validEmail("timothy@gmail.com"); would return true )
 */
function validEmail(email)
{
	var regexp = /[A-Za-z0-9]\w{2,}@ [A-Za-z0-9-]{3,}\.\[A-Za-z]{3}/
	return regexp.test(email);
}

/*
 *encrypts a line of text
 *
 *string = line of text
 *password = password to encrypt by
 */
function encrypt(string, password)
{
	password_number = 0;
	for(pletter = 0; pletter < password.length; pletter++){
		password_number += password.charCodeAt(pletter);
	}
	
	pletter = 0;
	string_encrypted = "";
	for(sletter = 0; sletter < string.length; sletter++){
		if(pletter == password.length){
			pletter = 0;
		}
		password_number2 = password.charCodeAt(pletter);
		number_value = (string.charCodeAt(sletter) * password_number) * password_number2;
		string_encrypted += number_value;
		if(sletter + 1 != string.length){
			string_encrypted += "-";
		}
		pletter++;
	} 
	return string_encrypted;
}
/*
 *decrypts an encrypted line of text using a password.
 *
 *string = encrypted line of text
 *password = password to decrypt by
 */
function decrypt(string, password)
{
	password_number = 0;
	for(pletter = 0; pletter < password.length; pletter++){
		password_number += password.charCodeAt(pletter);
	}

	chars = string.split('-');
	pletter = 0;
	string_decrypted = "";
	for(sletter = 0; sletter < chars.length; sletter++){
		if(pletter == password.length){
			pletter = 0;
		}
		password_number2 = password.charCodeAt(pletter);
		string_value = String.fromCharCode((chars[sletter] / password_number)/ password_number2);
		string_decrypted += string_value;
		pletter++;
	} 
	return string_decrypted;
}

/* A JavaScript implementation of the Secure Hash Algorithm, SHA-256
 * Version 0.3 Copyright Angel Marin 2003-2004 - http://anmar.eu.org/
 * Distributed under the BSD License
 * Some bits taken from Paul Johnston's SHA-1 implementation
 */
var chrsz = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode  */
function safe_add (x, y) {
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}
function S (X, n) {return ( X >>> n ) | (X << (32 - n));}
function R (X, n) {return ( X >>> n );}
function Ch(x, y, z) {return ((x & y) ^ ((~x) & z));}
function Maj(x, y, z) {return ((x & y) ^ (x & z) ^ (y & z));}
function Sigma0256(x) {return (S(x, 2) ^ S(x, 13) ^ S(x, 22));}
function Sigma1256(x) {return (S(x, 6) ^ S(x, 11) ^ S(x, 25));}
function Gamma0256(x) {return (S(x, 7) ^ S(x, 18) ^ R(x, 3));}
function Gamma1256(x) {return (S(x, 17) ^ S(x, 19) ^ R(x, 10));}
function core_sha256 (m, l) {
    var K = new Array(0x428A2F98,0x71374491,0xB5C0FBCF,0xE9B5DBA5,0x3956C25B,0x59F111F1,0x923F82A4,0xAB1C5ED5,0xD807AA98,0x12835B01,0x243185BE,0x550C7DC3,0x72BE5D74,0x80DEB1FE,0x9BDC06A7,0xC19BF174,0xE49B69C1,0xEFBE4786,0xFC19DC6,0x240CA1CC,0x2DE92C6F,0x4A7484AA,0x5CB0A9DC,0x76F988DA,0x983E5152,0xA831C66D,0xB00327C8,0xBF597FC7,0xC6E00BF3,0xD5A79147,0x6CA6351,0x14292967,0x27B70A85,0x2E1B2138,0x4D2C6DFC,0x53380D13,0x650A7354,0x766A0ABB,0x81C2C92E,0x92722C85,0xA2BFE8A1,0xA81A664B,0xC24B8B70,0xC76C51A3,0xD192E819,0xD6990624,0xF40E3585,0x106AA070,0x19A4C116,0x1E376C08,0x2748774C,0x34B0BCB5,0x391C0CB3,0x4ED8AA4A,0x5B9CCA4F,0x682E6FF3,0x748F82EE,0x78A5636F,0x84C87814,0x8CC70208,0x90BEFFFA,0xA4506CEB,0xBEF9A3F7,0xC67178F2);
    var HASH = new Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
    var W = new Array(64);
    var a, b, c, d, e, f, g, h, i, j;
    var T1, T2;
    /* append padding */
    m[l >> 5] |= 0x80 << (24 - l % 32);
    m[((l + 64 >> 9) << 4) + 15] = l;
    for ( var i = 0; i<m.length; i+=16 ) {
        a = HASH[0]; b = HASH[1]; c = HASH[2]; d = HASH[3]; e = HASH[4]; f = HASH[5]; g = HASH[6]; h = HASH[7];
        for ( var j = 0; j<64; j++) {
            if (j < 16) W[j] = m[j + i];
            else W[j] = safe_add(safe_add(safe_add(Gamma1256(W[j - 2]), W[j - 7]), Gamma0256(W[j - 15])), W[j - 16]);
            T1 = safe_add(safe_add(safe_add(safe_add(h, Sigma1256(e)), Ch(e, f, g)), K[j]), W[j]);
            T2 = safe_add(Sigma0256(a), Maj(a, b, c));
            h = g; g = f; f = e; e = safe_add(d, T1); d = c; c = b; b = a; a = safe_add(T1, T2);
        }
        HASH[0] = safe_add(a, HASH[0]); HASH[1] = safe_add(b, HASH[1]); HASH[2] = safe_add(c, HASH[2]); HASH[3] = safe_add(d, HASH[3]); HASH[4] = safe_add(e, HASH[4]); HASH[5] = safe_add(f, HASH[5]); HASH[6] = safe_add(g, HASH[6]); HASH[7] = safe_add(h, HASH[7]);
    }
    return HASH;
}
function str2binb (str) {
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (24 - i%32);
  return bin;
}
function binb2hex (binarray) {
  var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for (var i = 0; i < binarray.length * 4; i++) {
    str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8  )) & 0xF);
  }
  return str;
}
function hex_sha256(s){return binb2hex(core_sha256(str2binb(s),s.length * chrsz));}

/**
*
* MD5 (Message-Digest Algorithm)
* http://www.webtoolkit.info/
*
**/

function md5 (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 & 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);
        }
    }

    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();
}

/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

function echeck(str) {

	var at="@"
			var dot="."
			var lat=str.indexOf(at)
			var lstr=str.length
			var ldot=str.indexOf(dot)
			if (str.indexOf(at)==-1){
				return false
			}

			if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
						return false
			}

			if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
						return false
			}

			if (str.indexOf(at,(lat+1))!=-1){
						return false
			}

			if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
						return false
			}

			if (str.indexOf(dot,(lat+2))==-1){
						return false
			}
		
			if (str.indexOf(" ")!=-1){
						return false
			}

			return true					
}