var xmlHttp;

function productDetail(sku) {

    var url = "includes/productdetails.php?" + createProductQueryString(sku);
    // alert(url);
	
    createXMLHttpRequest();
    xmlHttp.onreadystatechange = productDetailHandleStateChange;
    xmlHttp.open("GET", url, true);
    xmlHttp.send(null);
    return url;
}

function createProductQueryString(sku) {
    sku = escape(sku);
    var sku = "sku=" + sku;
    //alert('search string created')
    //alert(itemlist);
    return sku;
}
    
function productDetailHandleStateChange() {
    if(xmlHttp.readyState == 3) {
	    document.getElementById("productdetail").innerHTML = "Updating...";
    }
    if(xmlHttp.readyState == 4) {
        if(xmlHttp.status == 200) {
	    document.getElementById("productdetail").innerHTML = xmlHttp.responseText;
        }
        else {
            alert("Unable to calculate price");
        }
    }
}