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/* 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;
	}
	else {
		var sPath = window.location.pathname;
		var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
		
		if ( !sPage || sPage.substring(0,5) == 'index') {
			topMenuID=document.getElementById("tm1");
			topMenuID.className=newClass;
		}
	
	}	
}

function submenu(newClass) {
	if (getURLParam("sm")){
		subMenuID=document.getElementById("sm" + getURLParam("sm"));
		subMenuID.className=newClass;
	}
}

/* Start commands when document is loaded */
window.onload=function(){
	topmenu('current');
	submenu('current');
}

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