// URL Parameter processing

// Get all url parameters as an associative array object. 
// Index 'paramNum' is set with the number of parameters. 
function getAllUrlParams()
{
  var href=window.location.href;
  var paramArr = {};
  var paramNum = 0;
  var paramIdx = 0;
  var split1 = href.split("?");
  if (split1.length > 1)
  {
    var split2 = split1[1].split("&");
    for(i = 0; i < split2.length; i++)
    {
      if (split2[i] != 'undefined')
      {
        var keyVal = split2[i].split("=");
        paramArr[keyVal[0]] = keyVal[1]; 
        paramNum++;
      }
    }
  }
  paramArr['paramNum'] = paramNum;
  return paramArr;
}

// Get a url parameter by name
function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}