grep (actually curl) equivalent (http requester) for javascript

curl.coffee

curl = (theUrl) ->
  xmlHttp = null
  xmlHttp = new XMLHttpRequest
  xmlHttp.open 'GET', theUrl, false
  xmlHttp.send null
  xmlHttp.responseText
  

curl.js

function curl(theUrl){ /* reference link:http://stackoverflow.com/questions/247483/http-get-request-in-javascript*/
    var xmlHttp = null;
    xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", theUrl, false );
    xmlHttp.send( null );
    return xmlHttp.responseText;
}