if (this.mlist.data.overI == this.mlist.Length()) {base = null} 
  HandleSuperscript: function () {    var base = this.mlist.Last();    if (base == null || (!base.atom && base.type != 'box' && base.type != 'frac'))       {base = this.mlist.Add(jsMath.mItem.Atom('ord',{type:null}))}    if (base.sup) {      if (base.sup.isPrime) {base = this.mlist.Add(jsMath.mItem.Atom('ord',{type:null}))}        else {this.Error("Double exponent: use braces to clarify"); return}    }    base.sup = this.ProcessScriptArg('superscript'); if (this.error) return;  },
1963	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1963/b61e1d309b0ecd4f851bf6d502f9d4406963c232/jsMath.js/clean/htdocs/jsMath/uncompressed/jsMath.js