/* Get URL parameters */
function getURLParam(strParamName){
  var strReturn = "";
  var strHref = window.location.href;
  if ( strHref.indexOf("?") > -1 ){
    var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    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;
}

/* Set active top menu */
function topmenu(newClass) {
	if (getURLParam("tm")){
		topMenuID=document.getElementById("tm" + getURLParam("tm"));
		topMenuID.className=newClass;
		}
	}

/* Start commands when document is loaded */
activateMenu = function(){
	topmenu('active');
}
if (window.addEventListener) {
window.addEventListener("load", activateMenu, false);
}
else if (window.attachEvent) {
window.attachEvent("onload", activateMenu);
}