var ajaxBustCache = true
var ajaxXMLDOM = null
var ajaxReturnMode = null
var ajaxHTTPRequest = null
var ajaxTargetObj = null
var ajaxTargetFunc = null

function ajax(iUri,iTarg,iFunc)
{
    ajaxHTTPRequest = null
    
    //Set the global variables
    if (iTarg == null)
    {
        ajaxReturnMode = "FUNC"
        ajaxXMLDOM = null
        ajaxTargetFunc = iFunc
    }
    else
    {
        ajaxReturnMode = "OBJ"
        ajaxTargetObj = iTarg
    }
    
    //If Mozilla, Safari etc
    if (window.XMLHttpRequest)
        ajaxHTTPRequest = new XMLHttpRequest()
    else if (window.ActiveXObject)
    {
        try
        {
            ajaxHTTPRequest = new ActiveXObject("Msxml2.XMLHTTP")
        }
        catch(e)
        {
            try
            {
                ajaxHTTPRequest = new ActiveXObject("Microsoft.XMLHTTP")
            }
            catch(e) {}
        }
    }
    else
        return false

    ajaxHTTPRequest.onreadystatechange = function(){ajaxLoadPage()}
    
    //If bust caching of external page
    if (ajaxBustCache)
        iUri += (iUri.indexOf("?") != -1)? "&" + new Date().getTime() : "?" + new Date().getTime()

    ajaxHTTPRequest.open('GET',iUri,true)
    ajaxHTTPRequest.send(null)
}

function ajaxLoadPage()
{
    if (ajaxHTTPRequest.readyState == 4 && (ajaxHTTPRequest.status == 200 || window.location.href.indexOf("http")==-1))
    {
        if (ajaxReturnMode == "FUNC")
            ajaxLoadXml(ajaxHTTPRequest.responseText)
        else
            document.getElementById(ajaxTargetObj).innerHTML = ajaxHTTPRequest.responseText
    }
}

function ajaxLoadXml(iText)
{
    //Code for IE
    if (window.ActiveXObject)
    {
        ajaxXMLDOM = new ActiveXObject("Microsoft.XMLDOM")
        ajaxXMLDOM.async = false
        ajaxXMLDOM.loadXML(iText)
    }
    //Code for Mozilla, Firefox, Opera, etc.
    else
        ajaxXMLDOM = (new DOMParser()).parseFromString(iText,"text/xml")

    eval(ajaxTargetFunc)
}