how to read a json file from jquery using $.get method when the nodes are only known at run time
suppose the user browseing the link
www.abc.com?operation='insert'

www.abc.com?operation='delete'
ex
json file  {"insert":"You have insert link ","delete":" you are on  delete link "}

I wants to load the respective message

i read the url succss full using jquery but how to handle json


$(document).ready(function () {
    $.getJSON('/persistent/Json/homepage.json', function (data) {
        jd = data;
        message();
      
    });

});

function message()
{
var operation ;
if(op="Insert")
{
operation ="insert";
}
if(op="Insert")
{
operation ="delete";
}
//here iam ging the node name dyanmically is it possible todo like that
 var mymessage = "jd."+operation;

alert(mymessage);

}