function getXHTML(data)
{
    return new Html2Xhtml(data).parse()
};

function Html2Xhtml(data)
{
    this.data=data||''
};

Html2Xhtml.prototype.setHTML = function(data)
{
    this.data=data||this.data
};

Html2Xhtml.prototype.parse = function()
{
    var state=0, xhtml='', p=0, unget=false, tagname='', attrname='', attrval='', quot='', data=this.data;
    var len=data.length, phpval='', tagtype=0, insidepre=false;
    
    while (1)
    {
        if (p>=len && !unget) {return xhtml}
        if(unget) {unget=false}
        else {var c=data.substr(p++,1)}
        switch(state) 
        {
            case 0: 
                if(c=='<') {state=1;break}
                var cc=c.charCodeAt();
                if(Html2Xhtml.charEntities[cc]) {xhtml+='&'+Html2Xhtml.charEntities[cc]+';'}
                else {xhtml+=c}
                break;
            case 1:
                if(/[a-zA-Z]/.test(c))
                {
                    state=2;
                    tagtype=1;
                    tagname=c.toLowerCase();
                    break
                }
                if(c=='/')
                {
                    state=2;
                    tagtype=-1;
                    break
                }
                if(c=='!')
                {
                    if(data.substr(p,2)=='--')
                    {
                        xhtml+='<!--';
                        p+=2;
                        state=9;
                        break
                    }
                    xhtml+='<!';
                    state=10;
                    break
                }
                if(c=='?')
                {
                    state=11;
                    xhtml+='<'+'?';
                    break
                }
                xhtml+='&lt;';
                unget=true;
                state=0;
                break;
            case 2:
                if(Html2Xhtml.isSpaceChar[c])
                {
                    xhtml+=(!insidepre&&tagtype>0&&Html2Xhtml.hasNLBefore[tagname]&&xhtml.length&&xhtml.substr(xhtml.length-1,1)!='\n'?'\n':'')+(tagtype>0?'<':'</')+tagname;state=3;
                    break
                }
                if(c=='/')
                {
                    xhtml+=(!insidepre&&tagtype>0&&Html2Xhtml.hasNLBefore[tagname]&&xhtml.length&&xhtml.substr(xhtml.length-1,1)!='\n'?'\n':'')+(tagtype>0?'<':'</')+tagname;
                    if(data.substr(p,1)!='>')
                    {
                        state=3;
                        break
                    }
                    state=4;
                    break
                }
                if(c=='>')
                {
                    xhtml+=(!insidepre&&tagtype>0&&Html2Xhtml.hasNLBefore[tagname]&&xhtml.length&&xhtml.substr(xhtml.length-1,1)!='\n'?'\n':'')+(tagtype>0?'<':'</')+tagname;
                    unget=true;
                    state=4;
                    break
                }
                tagname+=c.toLowerCase();
                break;
            case 3:
                if(Html2Xhtml.isSpaceChar[c]) {break}
                if(c=='/')
                {
                    if(data.substr(p,1)!='>') {break}
                    state=4;
                    break
                }
                if(c=='>')
                {
                    unget=true;
                    state=4;
                    break
                }
                attrname=c.toLowerCase();
                attrval='';
                state=5;
                break;
            case 4:
                xhtml+=(Html2Xhtml.isEmptyTag[tagname]?' />':'>')+(!insidepre&&tagtype<0&&Html2Xhtml.hasNLAfter[tagname]&&p<len&&data.substr(p,1)!='\n'?'\n':'');
                if(tagtype>0&&Html2Xhtml.dontAnalyzeContent[tagname])
                {
                    state=13;
                    attrname=attrval=quot='';
                    tagtype=0;
                    break
                }
                if(tagname=='pre') {insidepre=!insidepre}
                state=0;
                tagname=attrname=attrval=quot='';
                tagtype=0;
                break;
            case 5:
                if(Html2Xhtml.isSpaceChar[c])
                {
                    xhtml+=' '+attrname;
                    if(Html2Xhtml.isEmptyAttr[attrname]) {xhtml+='="'+attrname+'"'}
                    state=3;
                    break
                }
                if(c=='/') 
                {
                    xhtml+=' '+attrname;
                    if(Html2Xhtml.isEmptyAttr[attrname])
                    {
                        xhtml+='="'+attrname+'"'
                    }
                    if(data.substr(p,1)!='>')
                    {
                        state=3;
                        break
                    }
                    state=4;
                    break
                }
                if(c=='>')
                {
                    xhtml+=' '+attrname;
                    if(Html2Xhtml.isEmptyAttr[attrname]) {xhtml+='="'+attrname+'"'}
                    unget=true;
                    state=4;
                    break
                }
                if(c=='=')
                {
                    xhtml+=' '+attrname+'=';
                    state=6;
                    break
                }
                if(c=='"'||c=="'") {attrname+='?'}
                else {attrname+=c.toLowerCase()}
                break;
            case 6:
                if(Html2Xhtml.isSpaceChar[c])
                {
                    xhtml+=(Html2Xhtml.isEmptyAttr[attrname]?'"'+attrname+'"':'""');
                    state=3;
                    break
                }
                if(c=='>')
                {
                    xhtml+=(Html2Xhtml.isEmptyAttr[attrname]?'"'+attrname+'"':'""');
                    unget=true;
                    state=4;
                    break
                }
                if(c=='/'&&data.substr(p,1)=='>')
                {
                    xhtml+=(Html2Xhtml.isEmptyAttr[attrname]?'"'+attrname+'"':'""');
                    state=4;
                    break
                }
                if(c=='"'||c=="'")
                {
                    quot=c;
                    state=8;
                    break
                }
                attrval=c;
                state=7;
                break;
            case 7:
                if(Html2Xhtml.isSpaceChar[c])
                {
                    xhtml+='"'+Html2Xhtml.escapeQuot(attrval,'"')+'"';
                    state=3;
                    break
                }
                if(c=='/'&&data.substr(p,1)=='>')
                {
                    xhtml+='"'+Html2Xhtml.escapeQuot(attrval,'"')+'"';
                    state=4;
                    break
                }
                if(c=='>')
                {
                    unget=true;
                    xhtml+='"'+Html2Xhtml.escapeQuot(attrval,'"')+'"';
                    state=4;
                    break
                }
                attrval+=c;
                break;
            case 8:
                if(c==quot)
                {
                    xhtml+='"'+Html2Xhtml.escapeQuot(attrval,'"')+'"';
                    state=3;
                    break
                }
                attrval+=c;
                break;
            case 9:
                if(c=='-'&&data.substr(p,2)=='->')
                {
                    p+=2;
                    xhtml+='-->';
                    state=0;
                    break
                }
                xhtml+=c;
                break;
            case 10:
                if(c=='>') {state=0}
                xhtml+=c;
                break;
            case 11:
                if(c=="'"||c=='"') 
                {
                    quot=c;
                    state=12;
                    break
                }
                if(c=='?'&&data.substr(p,1)=='>')
                {
                    state=0;
                    xhtml+='?'+'>';
                    p++;
                    break
                }
                xhtml+=c;
                break;
            case 12:
                if(c==quot)
                {
                    state=11;
                    xhtml+=quot+Html2Xhtml.escapeQuot(phpval,quot)+quot;
                    phpval=quot='';
                    break
                }
                phpval+=c;
                break;
            case 13:
                if(c=='<'&&data.substr(p,tagname.length+1).toLowerCase()=='/'+tagname)
                {
                    unget=true;
                    state=0;
                    tagname='';
                    break
                }
                if(tagname=='textarea') {xhtml+=Html2Xhtml.escapeHTMLChar(c)}
                else {xhtml+=c}
                break
        }
    }
    return xhtml
};

//function to replace quotes with the quote escape character
Html2Xhtml.escapeQuot=function(str,quot)
{
    if(!quot) {quot='"'} 
    if(quot=='"') {return str.replace(/"/ig,'\\"')}
    return str.replace(/'/ig,"\\'")
};

//function to replace html characters with their escape characters (eg. replaces & with &amp;)
Html2Xhtml.escapeHTMLChar=function(c)
{
    if(c=='&') {return'&amp;'}
    if(c=='<') {return'&lt;'}
    if(c=='>') {return'&gt;'}
    var cc=c.charCodeAt();
    if(Html2Xhtml.charEntities[cc]) {return'&'+Html2Xhtml.charEntities[cc]+';'}
    else {return c}
};

Html2Xhtml.isSpaceChar={' ':1,'\r':1,'\n':1,'\t':1};

Html2Xhtml.isEmptyTag={'area':1,'base':1,'basefont':1,'br':1,'hr':1,'img':1,'input':1,'link':1,'meta':1,'param':1};

Html2Xhtml.isEmptyAttr={'checked':1,'compact':1,'declare':1,'defer':1,'disabled':1,'ismap':1,'multiple':1,'noresize':1,'nosave':1,'noshade':1,'nowrap':1,'readonly':1,'selected':1};

Html2Xhtml.hasNLBefore={'div':1,'p':1,'table':1,'tbody':1,'tr':1,'td':1,'th':1,'title':1,'head':1,'body':1,'script':1,'comment':1,'li':1,'meta':1,'h1':1,'h2':1,'h3':1,'h4':1,'h5':1,'h6':1,'hr':1,'ul':1,'ol':1,'option':1,'link':1};

Html2Xhtml.hasNLAfter={'html':1,'head':1,'body':1,'p':1,'th':1,'style':1};

Html2Xhtml.dontAnalyzeContent={'textarea':1,'script':1,'style':1};

Html2Xhtml.charEntities={160:'nbsp',161:'iexcl',162:'cent',163:'pound',164:'curren',165:'yen',166:'brvbar',167:'sect',168:'uml',169:'copy',170:'ordf',171:'laquo',172:'not',173:'shy',174:'reg',175:'macr',176:'deg',177:'plusmn',178:'sup2',179:'sup3',180:'acute',181:'micro',182:'para',183:'middot',184:'cedil',185:'sup1',186:'ordm',187:'raquo',188:'frac14',189:'frac12',190:'frac34',191:'iquest',192:'agrave',193:'aacute',194:'acirc',195:'atilde',196:'auml',197:'aring',198:'aelig',199:'ccedil',200:'egrave',201:'eacute',202:'ecirc',203:'euml',204:'igrave',205:'iacute',206:'icirc',207:'iuml',208:'eth',209:'ntilde',210:'ograve',211:'oacute',212:'ocirc',213:'otilde',214:'ouml',215:'times',216:'oslash',217:'ugrave',218:'uacute',219:'ucirc',220:'uuml',221:'yacute',222:'thorn',223:'szlig',224:'agrave',225:'aacute',226:'acirc',227:'atilde',228:'auml',229:'aring',230:'aelig',231:'ccedil',232:'egrave',233:'eacute',234:'ecirc',235:'euml',236:'igrave',237:'iacute',238:'icirc',239:'iuml',240:'eth',241:'ntilde',242:'ograve',243:'oacute',244:'ocirc',245:'otilde',246:'ouml',247:'divide',248:'oslash',249:'ugrave',250:'uacute',251:'ucirc',252:'uuml',253:'yacute',254:'thorn',255:'yuml',338:'oelig',339:'oelig',352:'scaron',353:'scaron',376:'yuml',710:'circ',732:'tilde',8194:'ensp',8195:'emsp',8201:'thinsp',8204:'zwnj',8205:'zwj',8206:'lrm',8207:'rlm',8211:'ndash',8212:'mdash',8216:'lsquo',8217:'rsquo',8218:'sbquo',8220:'ldquo',8221:'rdquo',8222:'bdquo',8224:'dagger',8225:'dagger',8240:'permil',8249:'lsaquo',8250:'rsaquo',8364:'euro',402:'fnof',913:'alpha',914:'beta',915:'gamma',916:'delta',917:'epsilon',918:'zeta',919:'eta',920:'theta',921:'iota',922:'kappa',923:'lambda',924:'mu',925:'nu',926:'xi',927:'omicron',928:'pi',929:'rho',931:'sigma',932:'tau',933:'upsilon',934:'phi',935:'chi',936:'psi',937:'omega',945:'alpha',946:'beta',947:'gamma',948:'delta',949:'epsilon',950:'zeta',951:'eta',952:'theta',953:'iota',954:'kappa',955:'lambda',956:'mu',957:'nu',958:'xi',959:'omicron',960:'pi',961:'rho',962:'sigmaf',963:'sigma',964:'tau',965:'upsilon',966:'phi',967:'chi',968:'psi',969:'omega',977:'thetasym',978:'upsih',982:'piv',8226:'bull',8230:'hellip',8242:'prime',8243:'prime',8254:'oline',8260:'frasl',8472:'weierp',8465:'image',8476:'real',8482:'trade',8501:'alefsym',8592:'larr',8593:'uarr',8594:'rarr',8595:'darr',8596:'harr',8629:'crarr',8656:'larr',8657:'uarr',8658:'rarr',8659:'darr',8660:'harr',8704:'forall',8706:'part',8707:'exist',8709:'empty',8711:'nabla',8712:'isin',8713:'notin',8715:'ni',8719:'prod',8721:'sum',8722:'minus',8727:'lowast',8730:'radic',8733:'prop',8734:'infin',8736:'ang',8743:'and',8744:'or',8745:'cap',8746:'cup',8747:'int',8756:'there4',8764:'sim',8773:'cong',8776:'asymp',8800:'ne',8801:'equiv',8804:'le',8805:'ge',8834:'sub',8835:'sup',8836:'nsub',8838:'sube',8839:'supe',8853:'oplus',8855:'otimes',8869:'perp',8901:'sdot',8968:'lceil',8969:'rceil',8970:'lfloor',8971:'rfloor',9001:'lang',9002:'rang',9426:'copy',9674:'loz',9824:'spades',9827:'clubs',9829:'hearts',9830:'diams'};