function mainbody(category)
{
var url="productlist.php?sid=" + new Date().getTime()+ "&category=" + category
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
}


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




function GetXmlHttpObject(handler)
{
var objXmlHttp=null

if (navigator.userAgent.indexOf("Opera")>=0)
{
alert("This example doesn't work in Opera")
return
}
if (navigator.userAgent.indexOf("MSIE")>=0)
{
var strName="Msxml2.XMLHTTP"
if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
{
strName="Microsoft.XMLHTTP"
}
try
{
objXmlHttp=new ActiveXObject(strName)
objXmlHttp.onreadystatechange=handler
return objXmlHttp
}
catch(e)
{
alert("Error. Scripting for ActiveX might be disabled")
return
}
}
if (navigator.userAgent.indexOf("Mozilla")>=0)
{
objXmlHttp=new XMLHttpRequest()
objXmlHttp.onload=handler
objXmlHttp.onerror=handler
return objXmlHttp
}
}


function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		carvingbook_over = newImage("./images/products_carvingbook_over.gif");
		lights_over = newImage("./images/products_lights_over.gif");
		accessories_over = newImage("./images/products_accessories_over.gif");


		free_stencils_over = newImage("./images/free_stencil_button_over.gif");
		history_over = newImage("./images/history_button_over.gif");
		preservation_over = newImage("./images/preservation_button_over.gif");
		recipe_over = newImage("./images/recipe_button_over.gif");
		carving_over = newImage("./images/carving_button_over.gif");
		preloadFlag = true;
	}
}