Extract names from text

extract.html

<textarea id="tu" cols="90" rows="10">Your text goes here </textarea>
<input id="btget" class="mybutton" type="button" value="Go Extract Info"/>
<div id="imgdiv" ></div>
<script>
function init(){
        var contentanalysisURL="http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20contentanalysis.analyze%20where%20text%3D%22{text}%22&format=json&callback=?";
        //this function will be called on json recieve
        function receiveJSON(data){
            //6. recieve Data

            try{
                //7.get list of all entities
                var et=data.query.results.entities.entity;

                var out=[];
                var len=et.length;
                for(var i=0;i<len;i++){
                    var eee=et[i];
                    //8.get entity name
                    var content=eee.text.content;
                    var startChar=eee.text.start;
                    var etypes="";
                    if(eee.types){
                        //9.get entity type
                        var typ=eee.types.type;
                        for(var j=0;j<typ.length;j++){
                            var ttt=typ[j].content;
                            if(ttt.indexOf('/')>=0){
                              etypes=etypes+" "+ ttt.substring(ttt.lastIndexOf('/')+1); 
                            }
                        }
                    }
                    //10.Append to dumo array
                    out[out.length]={
                        "Entity":content,
                        "startChar":startChar,
                        "etypes":etypes,
                    };
                    
                }
                //11.update container with output
                $('#imgdiv').html("<pre>"+JSON.stringify(out,null,'\t')+"</pre>");
            }catch(e){
                $('#imgdiv').html("<pre>error</pre>");
            }

        }
        //1. hook click event of btget 
        $('#btget').click(function (){
            //2. Get text, length of text should be less than 512 or less. 
            //Note:when text is too large this will not work
            var text=$('#tu').val();
            //3.Update login mesage

            $('#imgdiv').html("<pre>Loading..........</pre>");
            //4.Form a GET request, (YQL table )
            var url=contentanalysisURL.replace("{text}",text);
            //5. inject script block in dom with callback as receiveJSON
            $.getJSON(url,receiveJSON);
        });
    }
    
    $(document).ready(init);
</script>