Get URL Parameter Arguments

function getArgs(){
  var url = window.location.href;
  var qparts = url.split("?");

  if (qparts.length == 1){
    return {};
  }
  var query = qparts[1];
  var vars = $A(query.split("&"));
  var args = {}

  vars.each(function(parts){
    parts = parts.split("=");
    args[parts[0]] = unescape(parts[1]).replace(/\+/g," "); //unescape and turn +'s into spaces
  });

  return args;
}