function GetXmlHttpObject() {
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  }
return xmlHttp;
} 

var generalCurrentMenu = null;

function f_generalOpenMenu(pMenuName) {
	//alert(pMenuName);
	if (generalCurrentMenu != null) {
		document.getElementById(generalCurrentMenu).style.visibility = "hidden";
	}
	if (pMenuName != null) {
		document.getElementById(pMenuName).style.visibility = "visible";
		generalCurrentMenu = pMenuName
	}


}