function getURLParam(strParamName) {
  var strReturn = "";
  var strHref = window.location.href;
  if ( strHref.indexOf("?") > -1 ) {
    var strQueryString = strHref.substr(strHref.indexOf("?"));
    
    if (strQueryString.indexOf("#") > -1) 
      strQueryString = strQueryString.substr(0, strQueryString.indexOf("#"));
      
    var aQueryString = strQueryString.split("&");
    for ( var iParam = 0; iParam < aQueryString.length; iParam++ ) {
      if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ) {
        var aParam = aQueryString[iParam].split("="); 
        strReturn = aParam[1];
        break;
      }
    }
  }
  return strReturn;
}