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st;if(node.charAt(0)=="{"&&node.charAt(node.length-1)=="}"){st=node.charAt(1);if(st=="("||st=="["){node="{"+node.substr(2)}st=node.substr(1,6);if(st=="\\left("||st=="\\left["||st=="\\left{"){node="{"+node.substr(7)}st=node.substr(1,12);if(st=="\\left\\lbrace"||st=="\\left\\langle"){node="{"+node.substr(13)}st=node.charAt(node.length-2);if(st==")"||st=="]"){node=node.substr(0,node.length-8)+"}"}st=node.substr(node.length-8,7);if(st=="\\rbrace"||st=="\\rangle"){node=node.substr(0,node.length-14)+"}"}}return node}function AMremoveBrackets(node){var st;if(node.nodeName=="mrow"){st=node.firstChild.firstChild.nodeValue;if(st=="("||st=="["||st=="{"){node.removeChild(node.firstChild)}}if(node.nodeName=="mrow"){st=node.lastChild.firstChild.nodeValue;if(st==")"||st=="]"||st=="}"){node.removeChild(node.lastChild)}}}var AMnestingDepth,AMpreviousSymbol,AMcurrentSymbol;function AMTgetTeXsymbol(symb){if(typeof symb.val=="boolean"&&symb.val){pre=""}else{pre="\\"}if(symb.tex==null){return(pre+symb.input)}else{return(pre+symb.tex)}}function AMTgetTeXbracket(symb){if(symb.tex==null){return(symb.input)}else{return("\\"+symb.tex)}}function AMTparseSexpr(str){var symbol,node,result,i,st,newFrag="";str=AMremoveCharsAndBlanks(str,0);symbol=AMgetSymbol(str);if(symbol==null||symbol.ttype==RIGHTBRACKET&&AMnestingDepth>0){return[null,str]}if(symbol.ttype==DEFINITION){str=symbol.output+AMremoveCharsAndBlanks(str,symbol.input.length);symbol=AMgetSymbol(str)}switch(symbol.ttype){case UNDEROVER:case CONST:str=AMremoveCharsAndBlanks(str,symbol.input.length);var texsymbol=AMTgetTeXsymbol(symbol);if(texsymbol.charAt(0)=="\\"||symbol.tag=="mo"){return[texsymbol,str]}else{return["{"+texsymbol+"}",str]}case LEFTBRACKET:AMnestingDepth++;str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseExpr(str,true);AMnestingDepth--;if(typeof symbol.invisible=="boolean"&&symbol.invisible){node="{\\left."+result[0]+"}"}else{node="{\\left"+AMTgetTeXbracket(symbol)+result[0]+"}"}return[node,result[1]];case TEXT:if(symbol!=AMquote){str=AMremoveCharsAndBlanks(str,symbol.input.length)}if(str.charAt(0)=="{"){i=str.indexOf("}")}else{if(str.charAt(0)=="("){i=str.indexOf(")")}else{if(str.charAt(0)=="["){i=str.indexOf("]")}else{if(symbol==AMquote){i=str.slice(1).indexOf('"')+1}else{i=0}}}}if(i==-1){i=str.length}st=str.slice(1,i);if(st.charAt(0)==" "){newFrag="\\ "}newFrag+="\\text{"+st+"}";if(st.charAt(st.length-1)==" "){newFrag+="\\ "}str=AMremoveCharsAndBlanks(str,i+1);return[newFrag,str];case UNARY:str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseSexpr(str);if(result[0]==null){return["{"+AMTgetTeXsymbol(symbol)+"}",str]}if(typeof symbol.func=="boolean"&&symbol.func){st=str.charAt(0);if(st=="^"||st=="_"||st=="/"||st=="|"||st==","){return["{"+AMTgetTeXsymbol(symbol)+"}",str]}else{node="{"+AMTgetTeXsymbol(symbol)+"{"+result[0]+"}}";return[node,result[1]]}}result[0]=AMTremoveBrackets(result[0]);if(symbol.input=="sqrt"){return["\\sqrt{"+result[0]+"}",result[1]]}else{if(typeof symbol.acc=="boolean"&&symbol.acc){return["{"+AMTgetTeXsymbol(symbol)+"{"+result[0]+"}}",result[1]]}else{return["{"+AMTgetTeXsymbol(symbol)+"{"+result[0]+"}}",result[1]]}}case BINARY:str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseSexpr(str);if(result[0]==null){return["{"+AMTgetTeXsymbol(symbol)+"}",str]}result[0]=AMTremoveBrackets(result[0]);var result2=AMTparseSexpr(result[1]);if(result2[0]==null){return["{"+AMTgetTeXsymbol(symbol)+"}",str]}result2[0]=AMTremoveBrackets(result2[0]);if(symbol.input=="root"||symbol.input=="stackrel"){if(symbol.input=="root"){newFrag="{\\sqrt["+result[0]+"]{"+result2[0]+"}}"}else{newFrag="{"+AMTgetTeXsymbol(symbol)+"{"+result[0]+"}{"+result2[0]+"}}"}}if(symbol.input=="frac"){newFrag="{\\frac{"+result[0]+"}{"+result2[0]+"}}"}return[newFrag,result2[1]];case INFIX:str=AMremoveCharsAndBlanks(str,symbol.input.length);return[symbol.output,str];case SPACE:str=AMremoveCharsAndBlanks(str,symbol.input.length);return["{\\quad\\text{"+symbol.input+"}\\quad}",str];case LEFTRIGHT:AMnestingDepth++;str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseExpr(str,false);AMnestingDepth--;var st="";st=result[0].charAt(result[0].length-1);if(st=="|"){node="{\\left|"+result[0]+"}";return[node,result[1]]}else{node="{\\mid}";return[node,str]}default:str=AMremoveCharsAndBlanks(str,symbol.input.length);return["{"+AMTgetTeXsymbol(symbol)+"}",str]}}function AMTparseIexpr(str){var symbol,sym1,sym2,node,result,underover;str=AMremoveCharsAndBlanks(str,0);sym1=AMgetSymbol(str);result=AMTparseSexpr(str);node=result[0];str=result[1];symbol=AMgetSymbol(str);if(symbol.ttype==INFIX&&symbol.input!="/"){str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseSexpr(str);if(result[0]==null){result[0]="{}"}else{result[0]=AMTremoveBrackets(result[0])}str=result[1];if(symbol.input=="_"){sym2=AMgetSymbol(str);underover=(sym1.ttype==UNDEROVER);if(sym2.input=="^"){str=AMremoveCharsAndBlanks(str,sym2.input.length);var res2=AMTparseSexpr(str);res2[0]=AMTremoveBrackets(res2[0]);str=res2[1];node="{"+node;node+="_{"+result[0]+"}";node+="^{"+res2[0]+"}";node+="}"}else{node+="_{"+result[0]+"}"}}else{node="{"+node+"}^{"+result[0]+"}"}}return[node,str]}function AMTparseExpr(str,rightbracket){var symbol,node,result,i,nodeList=[],newFrag="";var addedright=false;do{str=AMremoveCharsAndBlanks(str,0);result=AMTparseIexpr(str);node=result[0];str=result[1];symbol=AMgetSymbol(str);if(symbol.ttype==INFIX&&symbol.input=="/"){str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMTparseIexpr(str);if(result[0]==null){result[0]="{}"}else{result[0]=AMTremoveBrackets(result[0])}str=result[1];node=AMTremoveBrackets(node);node="\\frac{"+node+"}";node+="{"+result[0]+"}";newFrag+=node;symbol=AMgetSymbol(str)}else{if(node!=undefined){newFrag+=node}}}while((symbol.ttype!=RIGHTBRACKET&&(symbol.ttype!=LEFTRIGHT||rightbracket)||AMnestingDepth==0)&&symbol!=null&&symbol.output!="");if(symbol.ttype==RIGHTBRACKET||symbol.ttype==LEFTRIGHT){var len=newFrag.length;if(len>2&&newFrag.charAt(0)=="{"&&newFrag.indexOf(",")>0){var right=newFrag.charAt(len-2);if(right==")"||right=="]"){var left=newFrag.charAt(6);if((left=="("&&right==")"&&symbol.output!="}")||(left=="["&&right=="]")){var mxout="\\matrix{";var pos=new Array();pos.push(0);var matrix=true;var mxnestingd=0;for(i=1;i<len-1;i++){if(newFrag.charAt(i)==left){mxnestingd++}if(newFrag.charAt(i)==right){mxnestingd--;if(mxnestingd==0&&newFrag.charAt(i+2)==","&&newFrag.charAt(i+3)=="{"){pos.push(i+2)}}}pos.push(len);var lastmxsubcnt=-1;if(mxnestingd==0&&pos.length>0){for(i=0;i<pos.length-1;i++){if(i>0){mxout+="\\\\"}if(i==0){var subarr=newFrag.substr(pos[i]+7,pos[i+1]-pos[i]-15).split(",")}else{var subarr=newFrag.substr(pos[i]+8,pos[i+1]-pos[i]-16).split(",")}if(lastmxsubcnt>0&&subarr.length!=lastmxsubcnt){matrix=false}else{if(lastmxsubcnt==-1){lastmxsubcnt=subarr.length}}mxout+=subarr.join("&")}}mxout+="}";if(matrix){newFrag=mxout}}}}str=AMremoveCharsAndBlanks(str,symbol.input.length);if(typeof symbol.invisible!="boolean"||!symbol.invisible){node="\\right"+AMTgetTeXbracket(symbol);newFrag+=node;addedright=true}else{newFrag+="\\right.";addedright=true}}if(AMnestingDepth>0&&!addedright){newFrag+="\\right."}return[newFrag,str]}function AMTparseAMtoTeX(str){AMnestingDepth=0;str=str.replace(/&nbsp;/g,"");str=str.replace(/&gt;/g,">");str=str.replace(/&lt;/g,"<");return AMTparseExpr(str.replace(/^\s+/g,""),false)[0]}function AMTparseMath(str){var texstring=AMTparseAMtoTeX(str);if(mathcolor!=""){texstring="\\"+gifcolor+texstring}if(displaystyle){texstring="\\displaystyle"+texstring}else{texstring="\\textstyle"+texstring}var node=AMcreateElementXHTML("img");if(typeof encodeURIComponent=="function"){texstring=encodeURIComponent(texstring)}else{texstring=escape(texstring)}node.src=AMTcgiloc+"?"+texstring;node.style.verticalAlign="middle";if(showasciiformulaonhover){node.setAttribute("title",str.replace(/\s+/g," "))}return node}function AMparseSexpr(str){var symbol,node,result,i,st,newFrag=document.createDocumentFragment();str=AMremoveCharsAndBlanks(str,0);symbol=AMgetSymbol(str);if(symbol==null||symbol.ttype==RIGHTBRACKET&&AMnestingDepth>0){return[null,str]}if(symbol.ttype==DEFINITION){str=symbol.output+AMremoveCharsAndBlanks(str,symbol.input.length);symbol=AMgetSymbol(str)}switch(symbol.ttype){case UNDEROVER:case CONST:str=AMremoveCharsAndBlanks(str,symbol.input.length);return[AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)),str];case LEFTBRACKET:AMnestingDepth++;str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseExpr(str,true);AMnestingDepth--;if(typeof symbol.invisible=="boolean"&&symbol.invisible){node=AMcreateMmlNode("mrow",result[0])}else{node=AMcreateMmlNode("mo",document.createTextNode(symbol.output));node=AMcreateMmlNode("mrow",node);node.appendChild(result[0])}return[node,result[1]];case TEXT:if(symbol!=AMquote){str=AMremoveCharsAndBlanks(str,symbol.input.length)}if(str.charAt(0)=="{"){i=str.indexOf("}")}else{if(str.charAt(0)=="("){i=str.indexOf(")")}else{if(str.charAt(0)=="["){i=str.indexOf("]")}else{if(symbol==AMquote){i=str.slice(1).indexOf('"')+1}else{i=0}}}}if(i==-1){i=str.length}st=str.slice(1,i);if(st.charAt(0)==" "){node=AMcreateElementMathML("mspace");node.setAttribute("width","1ex");newFrag.appendChild(node)}newFrag.appendChild(AMcreateMmlNode(symbol.tag,document.createTextNode(st)));if(st.charAt(st.length-1)==" "){node=AMcreateElementMathML("mspace");node.setAttribute("width","1ex");newFrag.appendChild(node)}str=AMremoveCharsAndBlanks(str,i+1);return[AMcreateMmlNode("mrow",newFrag),str];case UNARY:str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseSexpr(str);if(result[0]==null){return[AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)),str]}if(typeof symbol.func=="boolean"&&symbol.func){st=str.charAt(0);if(st=="^"||st=="_"||st=="/"||st=="|"||st==","){return[AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)),str]}else{node=AMcreateMmlNode("mrow",AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)));node.appendChild(result[0]);return[node,result[1]]}}AMremoveBrackets(result[0]);if(symbol.input=="sqrt"){return[AMcreateMmlNode(symbol.tag,result[0]),result[1]]}else{if(typeof symbol.acc=="boolean"&&symbol.acc){node=AMcreateMmlNode(symbol.tag,result[0]);node.appendChild(AMcreateMmlNode("mo",document.createTextNode(symbol.output)));return[node,result[1]]}else{if(!isIE&&typeof symbol.codes!="undefined"){for(i=0;i<result[0].childNodes.length;i++){if(result[0].childNodes[i].nodeName=="mi"||result[0].nodeName=="mi"){st=(result[0].nodeName=="mi"?result[0].firstChild.nodeValue:result[0].childNodes[i].firstChild.nodeValue);var newst=[];for(var j=0;j<st.length;j++){if(st.charCodeAt(j)>64&&st.charCodeAt(j)<91){newst=newst+String.fromCharCode(symbol.codes[st.charCodeAt(j)-65])}else{newst=newst+st.charAt(j)}}if(result[0].nodeName=="mi"){result[0]=AMcreateElementMathML("mo").appendChild(document.createTextNode(newst))}else{result[0].replaceChild(AMcreateElementMathML("mo").appendChild(document.createTextNode(newst)),result[0].childNodes[i])}}}}node=AMcreateMmlNode(symbol.tag,result[0]);node.setAttribute(symbol.atname,symbol.atval);return[node,result[1]]}}case BINARY:str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseSexpr(str);if(result[0]==null){return[AMcreateMmlNode("mo",document.createTextNode(symbol.input)),str]}AMremoveBrackets(result[0]);var result2=AMparseSexpr(result[1]);if(result2[0]==null){return[AMcreateMmlNode("mo",document.createTextNode(symbol.input)),str]}AMremoveBrackets(result2[0]);if(symbol.input=="root"||symbol.input=="stackrel"){newFrag.appendChild(result2[0])}newFrag.appendChild(result[0]);if(symbol.input=="frac"){newFrag.appendChild(result2[0])}return[AMcreateMmlNode(symbol.tag,newFrag),result2[1]];case INFIX:str=AMremoveCharsAndBlanks(str,symbol.input.length);return[AMcreateMmlNode("mo",document.createTextNode(symbol.output)),str];case SPACE:str=AMremoveCharsAndBlanks(str,symbol.input.length);node=AMcreateElementMathML("mspace");node.setAttribute("width","1ex");newFrag.appendChild(node);newFrag.appendChild(AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)));node=AMcreateElementMathML("mspace");node.setAttribute("width","1ex");newFrag.appendChild(node);return[AMcreateMmlNode("mrow",newFrag),str];case LEFTRIGHT:AMnestingDepth++;str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseExpr(str,false);AMnestingDepth--;var st="";if(result[0].lastChild!=null){st=result[0].lastChild.firstChild.nodeValue}if(st=="|"){node=AMcreateMmlNode("mo",document.createTextNode(symbol.output));node=AMcreateMmlNode("mrow",node);node.appendChild(result[0]);return[node,result[1]]}else{node=AMcreateMmlNode("mo",document.createTextNode(symbol.output));node=AMcreateMmlNode("mrow",node);return[node,str]}default:str=AMremoveCharsAndBlanks(str,symbol.input.length);return[AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)),str]}}function AMparseIexpr(str){var symbol,sym1,sym2,node,result,underover;str=AMremoveCharsAndBlanks(str,0);sym1=AMgetSymbol(str);result=AMparseSexpr(str);node=result[0];str=result[1];symbol=AMgetSymbol(str);if(symbol.ttype==INFIX&&symbol.input!="/"){str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseSexpr(str);if(result[0]==null){result[0]=AMcreateMmlNode("mo",document.createTextNode("\u25A1"))}else{AMremoveBrackets(result[0])}str=result[1];if(symbol.input=="_"){sym2=AMgetSymbol(str);underover=(sym1.ttype==UNDEROVER);if(sym2.input=="^"){str=AMremoveCharsAndBlanks(str,sym2.input.length);var res2=AMparseSexpr(str);AMremoveBrackets(res2[0]);str=res2[1];node=AMcreateMmlNode((underover?"munderover":"msubsup"),node);node.appendChild(result[0]);node.appendChild(res2[0]);node=AMcreateMmlNode("mrow",node)}else{node=AMcreateMmlNode((underover?"munder":"msub"),node);node.appendChild(result[0])}}else{node=AMcreateMmlNode(symbol.tag,node);node.appendChild(result[0])}}return[node,str]}function AMparseExpr(str,rightbracket){var symbol,node,result,i,nodeList=[],newFrag=document.createDocumentFragment();do{str=AMremoveCharsAndBlanks(str,0);result=AMparseIexpr(str);node=result[0];str=result[1];symbol=AMgetSymbol(str);if(symbol.ttype==INFIX&&symbol.input=="/"){str=AMremoveCharsAndBlanks(str,symbol.input.length);result=AMparseIexpr(str);if(result[0]==null){result[0]=AMcreateMmlNode("mo",document.createTextNode("\u25A1"))}else{AMremoveBrackets(result[0])}str=result[1];AMremoveBrackets(node);node=AMcreateMmlNode(symbol.tag,node);node.appendChild(result[0]);newFrag.appendChild(node);symbol=AMgetSymbol(str)}else{if(node!=undefined){newFrag.appendChild(node)}}}while((symbol.ttype!=RIGHTBRACKET&&(symbol.ttype!=LEFTRIGHT||rightbracket)||AMnestingDepth==0)&&symbol!=null&&symbol.output!="");if(symbol.ttype==RIGHTBRACKET||symbol.ttype==LEFTRIGHT){var len=newFrag.childNodes.length;if(len>0&&newFrag.childNodes[len-1].nodeName=="mrow"&&len>1&&newFrag.childNodes[len-2].nodeName=="mo"&&newFrag.childNodes[len-2].firstChild.nodeValue==","){var right=newFrag.childNodes[len-1].lastChild.firstChild.nodeValue;if(right==")"||right=="]"){var left=newFrag.childNodes[len-1].firstChild.firstChild.nodeValue;if(left=="("&&right==")"&&symbol.output!="}"||left=="["&&right=="]"){var pos=[];var matrix=true;var m=newFrag.childNodes.length;for(i=0;matrix&&i<m;i=i+2){pos[i]=[];node=newFrag.childNodes[i];if(matrix){matrix=node.nodeName=="mrow"&&(i==m-1||node.nextSibling.nodeName=="mo"&&node.nextSibling.firstChild.nodeValue==",")&&node.firstChild.firstChild.nodeValue==left&&node.lastChild.firstChild.nodeValue==right}if(matrix){for(var j=0;j<node.childNodes.length;j++){if(node.childNodes[j].firstChild.nodeValue==","){pos[i][pos[i].length]=j}}}if(matrix&&i>1){matrix=pos[i].length==pos[i-2].length}}if(matrix){var row,frag,n,k,table=document.createDocumentFragment();for(i=0;i<m;i=i+2){row=document.createDocumentFragment();frag=document.createDocumentFragment();node=newFrag.firstChild;n=node.childNodes.length;k=0;node.removeChild(node.firstChild);for(j=1;j<n-1;j++){if(typeof pos[i][k]!="undefined"&&j==pos[i][k]){node.removeChild(node.firstChild);row.appendChild(AMcreateMmlNode("mtd",frag));k++}else{frag.appendChild(node.firstChild)}}row.appendChild(AMcreateMmlNode("mtd",frag));if(newFrag.childNodes.length>2){newFrag.removeChild(newFrag.firstChild);newFrag.removeChild(newFrag.firstChild)}table.appendChild(AMcreateMmlNode("mtr",row))}node=AMcreateMmlNode("mtable",table);if(typeof symbol.invisible=="boolean"&&symbol.invisible){node.setAttribute("columnalign","left")}newFrag.replaceChild(node,newFrag.firstChild)}}}}str=AMremoveCharsAndBlanks(str,symbol.input.length);if(typeof symbol.invisible!="boolean"||!symbol.invisible){node=AMcreateMmlNode("mo",document.createTextNode(symbol.output));newFrag.appendChild(node)}}return[newFrag,str]}function AMparseMath(str){var result,node=AMcreateElementMathML("mstyle");if(mathcolor!=""){node.setAttribute("mathcolor",mathcolor)}if(displaystyle){node.setAttribute("displaystyle","true")}if(mathfontfamily!=""){node.setAttribute("fontfamily",mathfontfamily)}AMnestingDepth=0;str=str.replace(/&nbsp;/g,"");str=str.replace(/&gt;/g,">");str=str.replace(/&lt;/g,"<");node.appendChild(AMparseExpr(str.replace(/^\s+/g,""),false)[0]);node=AMcreateMmlNode("math",node);if(showasciiformulaonhover){node.setAttribute("title",str.replace(/\s+/g," "))}if(mathfontfamily!=""&&(isIE||mathfontfamily!="serif")){var fnode=AMcreateElementXHTML("font");fnode.setAttribute("face",mathfontfamily);fnode.appendChild(node);return fnode}return node}function AMstrarr2docFrag(arr,linebreaks,usingMathML){var newFrag=document.createDocumentFragment();var expr=false;for(var i=0;i<arr.length;i++){if(expr&&!usingMathML){newFrag.appendChild(AMTparseMath(arr[i]))}else{if(expr&&usingMathML){newFrag.appendChild(AMparseMath(arr[i]))}else{var arri=(linebreaks?arr[i].split("\n\n"):[arr[i]]);newFrag.appendChild(AMcreateElementXHTML("span").appendChild(document.createTextNode(arri[0])));for(var j=1;j<arri.length;j++){newFrag.appendChild(AMcreateElementXHTML("p"));newFrag.appendChild(AMcreateElementXHTML("span").appendChild(document.createTextNode(arri[j])))}}}expr=!expr}return newFrag}function AMprocessNodeR(n,linebreaks){var mtch,str,arr,frg,i;if(n.childNodes.length==0){if((n.nodeType!=8||linebreaks)&&n.parentNode.nodeName!="form"&&n.parentNode.nodeName!="FORM"&&n.parentNode.nodeName!="textarea"&&n.parentNode.nodeName!="TEXTAREA"&&n.parentNode.nodeName!="pre"&&n.parentNode.nodeName!="PRE"){str=n.nodeValue;if(!(str==null)){str=str.replace(/\r\n\r\n/g,"\n\n");if(doubleblankmathdelimiter){str=str.replace(/\x20\x20\./g," "+AMdelimiter1+".");str=str.replace(/\x20\x20,/g," "+AMdelimiter1+",");str=str.replace(/\x20\x20/g," "+AMdelimiter1+" ")}str=str.replace(/\x20+/g," ");str=str.replace(/\s*\r\n/g," ");mtch=false;if(AMusedelimiter2){str=str.replace(new RegExp(AMescape2,"g"),function(st){mtch=true;return"AMescape2"})}str=str.replace(new RegExp(AMescape1,"g"),function(st){mtch=true;return"AMescape1"});if(AMusedelimiter2){str=str.replace(new RegExp(AMdelimiter2regexp,"g"),AMdelimiter1)}arr=str.split(AMdelimiter1);for(i=0;i<arr.length;i++){if(AMusedelimiter2){arr[i]=arr[i].replace(/AMescape2/g,AMdelimiter2).replace(/AMescape1/g,AMdelimiter1)}}if(arr.length>1||mtch){if(checkForMathML){checkForMathML=false;var nd=AMisMathMLavailable();AMnoMathML=nd!=null;if(AMnoMathML&&notifyIfNoMathML){if(alertIfNoMathML){alert("To view the ASCIIMathML notation use Internet Explorer 6 +\nMathPlayer (free from www.dessci.com)\n                or Firefox/Mozilla/Netscape")}else{AMbody.insertBefore(nd,AMbody.childNodes[0])}}}if(!AMnoMathML){frg=AMstrarr2docFrag(arr,n.nodeType==8,true)}else{frg=AMstrarr2docFrag(arr,n.nodeType==8,false)}var len=frg.childNodes.length;n.parentNode.replaceChild(frg,n);return len-1}}}else{return 0}}else{if(n.nodeName!="math"){for(i=0;i<n.childNodes.length;i++){i+=AMprocessNodeR(n.childNodes[i],linebreaks)}}}return 0}function AMprocessNode(n,linebreaks,spanclassAM){var frag,st;if(spanclassAM!=null){frag=document.getElementsByTagName("span");for(var i=0;i<frag.length;i++){if(frag[i].className=="AM"){AMprocessNodeR(frag[i],linebreaks)}}}else{try{st=n.innerHTML}catch(err){}if(AMusedelimiter2){if(st==null||st.indexOf(AMdelimiter1)!=-1||st.indexOf(AMdelimiter2)!=-1){AMprocessNodeR(n,linebreaks)}}else{if(st==null||st.indexOf(AMdelimiter1)!=-1){AMprocessNodeR(n,linebreaks)}}}if(isIE){frag=document.getElementsByTagName("math");for(var i=0;i<frag.length;i++){frag[i].update()}}}var AMbody;var AMnoMathML=false,AMtranslated=false;function translate(spanclassAM){if(!AMtranslated){AMtranslated=true;AMinitSymbols();AMbody=document.getElementsByTagName("body")[0];AMprocessNode(AMbody,false,spanclassAM)}}if(isIE){document.write('<object id="mathplayer"  classid="clsid:32F66A20-7614-11D4-BD11-00104BD3F987"></object>');document.write('<?import namespace="m" implementation="#mathplayer"?>')}function generic(){translate()}if(typeof window.addEventListener!="undefined"){window.addEventListener("load",generic,false)}else{if(typeof document.addEventListener!="undefined"){document.addEventListener("load",generic,false)}else{if(typeof window.attachEvent!="undefined"){window.attachEvent("onload",generic)}else{if(typeof window.onload=="function"){var existing=onload;window.onload=function(){existing();generic()}}else{window.onload=generic}}}}if(checkForMathML){checkForMathML=false;var nd=AMisMathMLavailable();AMnoMathML=nd!=null};