var xmlHttp
var localWhereToPut

function showPage(pageToFetch,whereToPut)
{ 
    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null)
        {
            alert ("Lamentamos, não tem suporte para correr AJAX no seu browser.")
            return
        } 
    var url=pageToFetch
    localWhereToPut = whereToPut
    //url=url+"?q="
    //url=url+"&sid="+Math.random()
    xmlHttp.onreadystatechange=stateChanged
    xmlHttp.open("GET",url,true)
    xmlHttp.send(null)
}

function stateChanged() 
{ 
    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
        { 
            document.getElementById(localWhereToPut).innerHTML  =xmlHttp.responseText
            localWhereToPut = ""

        } 
} 

function GetXmlHttpObject()
{ 
    var objXMLHttp=null
    if (window.XMLHttpRequest)
        {
            objXMLHttp=new XMLHttpRequest()
        }
    else if (window.ActiveXObject)
        {
            objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
        }
    return objXMLHttp
}