var req;
var elementId;
var globalIdPack;
function loadXMLDoc(url) {
	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
}

function processReqChange() {
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            // ...processing statements go here...
				idElement=document.getElementById(elementId);
				idElement.innerHTML=req.responseText;
				
			if(elementId=="search_hint"){
				if(req.responseText!=""){
					idElement.style.display="block";
				}else{
					idElement.style.display="none";
				}
			}
			//idElement.style.display="block";
			//alert(req.responseText);
			/*
			if(elementId.substr(0,4) == "size"){
				resetColors(globalIdPack);
			}
			*/
        } else {
            alert("There was a problem retrieving the XML data:\n" +
                req.statusText);
        }
    }
}

function UpdateCart(idcart){
	url="customize_cart_display.php";
	loadXMLDoc(url);
	if(req){
		
		var params = "id_cart="+idcart;
		
		for(i=0; i<document.cust_form.elements.length; i++){
			if(document.cust_form.elements[i].type=="radio"){
				if(document.cust_form.elements[i].checked){
					params=params+"&"+document.cust_form.elements[i].name+"="+document.cust_form.elements[i].value;
				}
			}else{
				params=params+"&"+document.cust_form.elements[i].name+"="+document.cust_form.elements[i].value;
			}
		}

		req.onreadystatechange = processReqChange;
		elementId='LeftMenuCart';
		req.open("POST", url, true);
		req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		req.setRequestHeader("Content-length", params.length);
		req.setRequestHeader("Connection", "close");

		req.send(params);
		
		//globalIdPack=idpack;
	}
}


function liveSearchStart(keywords){
	D=new Date();
	T=+D;
	kw=keywords.value;
	url="httprequest_search.php?kw="+kw+"&time="+T;
	loadXMLDoc(url);
	if(req){
		req.onreadystatechange = processReqChange;
		elementId='search_hint';
		req.open("GET", url, true);
		req.send("");
		
		//globalIdPack=idpack;
	}
}

function hide_div(dv){
	el=document.getElementById(dv);
	el.style.display="none";
}