function htmlentities (string, quote_style) {
    // Convert all applicable characters to HTML entities  
    // 
    // version: 903.2219
    // discuss at: http://phpjs.org/functions/htmlentities
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: nobbler
    // +    tweaked by: Jack
    // +   bugfixed by: Onno Marsman
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // -    depends on: get_html_translation_table
    // *     example 1: htmlentities('Kevin & van Zonneveld');
    // *     returns 1: 'Kevin & van Zonneveld'
    // *     example 2: htmlentities("foo'bar","ENT_QUOTES");
    // *     returns 2: 'foo'bar'
    var histogram = {}, symbol = '', tmp_str = '', entity = '';
    tmp_str = string.toString();
    
    if (false === (histogram = get_html_translation_table('HTML_ENTITIES', quote_style))) {
        return false;
    }
    
    for (symbol in histogram) {
        entity = histogram[symbol];
        tmp_str = tmp_str.split(symbol).join(entity);
    }
    return tmp_str;
}

function get_html_translation_table(table, quote_style) {
    // Returns the internal translation table used by htmlspecialchars and htmlentities  
    // 
    // version: 903.1614
    // discuss at: http://phpjs.org/functions/get_html_translation_table
    // +   original by: Philip Peterson
    // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: noname
    // +   bugfixed by: Alex
    // +   bugfixed by: Marco
    // +   bugfixed by: madipta
    // %          note: It has been decided that we're not going to add global
    // %          note: dependencies to php.js. Meaning the constants are not
    // %          note: real constants, but strings instead. integers are also supported if someone
    // %          note: chooses to create the constants themselves.
    // %          note: Table from http://www.the-art-of-web.com/html/character-codes/
    // *     example 1: get_html_translation_table('HTML_SPECIALCHARS');
    // *     returns 1: {'"': '&quot;', '&': '&amp;', '<': '&lt;', '>': '&gt;'}
    
    var entities = {}, histogram = {}, decimal = 0, symbol = '';
    var constMappingTable = {}, constMappingQuoteStyle = {};
    var useTable = {}, useQuoteStyle = {};
    
    useTable      = (table ? table.toUpperCase() : 'HTML_SPECIALCHARS');
    useQuoteStyle = (quote_style ? quote_style.toUpperCase() : 'ENT_COMPAT');
    
    // Translate arguments
    constMappingTable[0]      = 'HTML_SPECIALCHARS';
    constMappingTable[1]      = 'HTML_ENTITIES';
    constMappingQuoteStyle[0] = 'ENT_NOQUOTES';
    constMappingQuoteStyle[2] = 'ENT_COMPAT';
    constMappingQuoteStyle[3] = 'ENT_QUOTES';
    
    // Map numbers to strings for compatibilty with PHP constants
    if (!isNaN(useTable)) {
        useTable = constMappingTable[useTable];
    }
    if (!isNaN(useQuoteStyle)) {
        useQuoteStyle = constMappingQuoteStyle[useQuoteStyle];
    }

    if (useTable == 'HTML_SPECIALCHARS') {
        // ascii decimals for better compatibility
        entities['38'] = '&amp;';
        if (useQuoteStyle != 'ENT_NOQUOTES') {
            entities['34'] = '&quot;';
        }
        if (useQuoteStyle == 'ENT_QUOTES') {
            entities['39'] = '&#039;';
        }
        entities['60'] = '&lt;';
        entities['62'] = '&gt;';
    } else if (useTable == 'HTML_ENTITIES') {
        // ascii decimals for better compatibility
	    entities['38']  = '&amp;';
        if (useQuoteStyle != 'ENT_NOQUOTES') {
            entities['34'] = '&quot;';
        }
        if (useQuoteStyle == 'ENT_QUOTES') {
            entities['39'] = '&#039;';
        }
	    entities['60']  = '&lt;';
	    entities['62']  = '&gt;';
	    entities['160'] = '&nbsp;';
	    entities['161'] = '&iexcl;';
	    entities['162'] = '&cent;';
	    entities['163'] = '&pound;';
	    entities['164'] = '&curren;';
	    entities['165'] = '&yen;';
	    entities['166'] = '&brvbar;';
	    entities['167'] = '&sect;';
	    entities['168'] = '&uml;';
	    entities['169'] = '&copy;';
	    entities['170'] = '&ordf;';
	    entities['171'] = '&laquo;';
	    entities['172'] = '&not;';
	    entities['173'] = '&shy;';
	    entities['174'] = '&reg;';
	    entities['175'] = '&macr;';
	    entities['176'] = '&deg;';
	    entities['177'] = '&plusmn;';
	    entities['178'] = '&sup2;';
	    entities['179'] = '&sup3;';
	    entities['180'] = '&acute;';
	    entities['181'] = '&micro;';
	    entities['182'] = '&para;';
	    entities['183'] = '&middot;';
	    entities['184'] = '&cedil;';
	    entities['185'] = '&sup1;';
	    entities['186'] = '&ordm;';
	    entities['187'] = '&raquo;';
	    entities['188'] = '&frac14;';
	    entities['189'] = '&frac12;';
	    entities['190'] = '&frac34;';
	    entities['191'] = '&iquest;';
	    entities['192'] = '&Agrave;';
	    entities['193'] = '&Aacute;';
	    entities['194'] = '&Acirc;';
	    entities['195'] = '&Atilde;';
	    entities['196'] = '&Auml;';
	    entities['197'] = '&Aring;';
	    entities['198'] = '&AElig;';
	    entities['199'] = '&Ccedil;';
	    entities['200'] = '&Egrave;';
	    entities['201'] = '&Eacute;';
	    entities['202'] = '&Ecirc;';
	    entities['203'] = '&Euml;';
	    entities['204'] = '&Igrave;';
	    entities['205'] = '&Iacute;';
	    entities['206'] = '&Icirc;';
	    entities['207'] = '&Iuml;';
	    entities['208'] = '&ETH;';
	    entities['209'] = '&Ntilde;';
	    entities['210'] = '&Ograve;';
	    entities['211'] = '&Oacute;';
	    entities['212'] = '&Ocirc;';
	    entities['213'] = '&Otilde;';
	    entities['214'] = '&Ouml;';
	    entities['215'] = '&times;';
	    entities['216'] = '&Oslash;';
	    entities['217'] = '&Ugrave;';
	    entities['218'] = '&Uacute;';
	    entities['219'] = '&Ucirc;';
	    entities['220'] = '&Uuml;';
	    entities['221'] = '&Yacute;';
	    entities['222'] = '&THORN;';
	    entities['223'] = '&szlig;';
	    entities['224'] = '&agrave;';
	    entities['225'] = '&aacute;';
	    entities['226'] = '&acirc;';
	    entities['227'] = '&atilde;';
	    entities['228'] = '&auml;';
	    entities['229'] = '&aring;';
	    entities['230'] = '&aelig;';
	    entities['231'] = '&ccedil;';
	    entities['232'] = '&egrave;';
	    entities['233'] = '&eacute;';
	    entities['234'] = '&ecirc;';
	    entities['235'] = '&euml;';
	    entities['236'] = '&igrave;';
	    entities['237'] = '&iacute;';
	    entities['238'] = '&icirc;';
	    entities['239'] = '&iuml;';
	    entities['240'] = '&eth;';
	    entities['241'] = '&ntilde;';
	    entities['242'] = '&ograve;';
	    entities['243'] = '&oacute;';
	    entities['244'] = '&ocirc;';
	    entities['245'] = '&otilde;';
	    entities['246'] = '&ouml;';
	    entities['247'] = '&divide;';
	    entities['248'] = '&oslash;';
	    entities['249'] = '&ugrave;';
	    entities['250'] = '&uacute;';
	    entities['251'] = '&ucirc;';
	    entities['252'] = '&uuml;';
	    entities['253'] = '&yacute;';
	    entities['254'] = '&thorn;';
	    entities['255'] = '&yuml;';
    } else {
        throw Error("Table: "+useTable+' not supported');
        return false;
    }
    
    // ascii decimals to real symbols
    for (decimal in entities) {
        symbol = String.fromCharCode(decimal);
        histogram[symbol] = entities[decimal];
    }
    
    return histogram;
}

function utf8_encode ( string ) {
// http://kevin.vanzonneveld.net
// +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
// +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// +   improved by: sowberry
// +    tweaked by: Jack
// +   bugfixed by: Onno Marsman
// +   improved by: Yves Sucaet
// +   bugfixed by: Onno Marsman
// *     example 1: utf8_encode('Kevin van Zonneveld');
// *     returns 1: 'Kevin van Zonneveld'

string = (string+'').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;
}

function md5 ( str ) {
// http://kevin.vanzonneveld.net
// +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
// + namespaced by: Michael White (http://getsprink.com)
// +    tweaked by: Jack
// +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// +      input by: Brett Zamir
// +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// -    depends on: utf8_encode
// *     example 1: md5('Kevin van Zonneveld');
// *     returns 1: '6e658d4bfcb59cc13f96c14450ac40b9'

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=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=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;

																				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();
}