var xmlHttp

function updateProduce(FilterText,OnlyAvailable)
{
    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null)
    {
        alert ("Browser does not support HTTP Request")
        return
    }
    
    var url="../produceList.php"
    url+="?filterText="+FilterText
    url+="&onlyAvailable="+OnlyAvailable
    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("ProduceList").innerHTML=xmlHttp.responseText 
    } 
}

function GetXmlHttpObject()
{
    var xmlHttp=null;

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