function confirmRemove(indexArr){
	var confirmed = confirm("Remove item to cart?");
	if(confirmed == true){
		removeToCart(indexArr);
	}
}

var xmlHttp;
function updateQty(obj, id){
	
	xmlHttp=GetXmlHttpObject();
	if(xmlHttp==null){
		alert("Browser does not support HTTP Request/AJAX, uprade to latest version of your browser");
		return;
	}
	
	var value = obj.value;
	var url = "updateQty.php?id="+id+"&val="+value+"&num="+(Math.floor(Math.random()*20));
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}


function removeToCart(indexArr){	
	xmlHttp=GetXmlHttpObject();
	if(xmlHttp==null){
		alert("Browser does not support HTTP Request/AJAX, uprade to latest version of your browser");
		return;
	}
	var url = "deleteToCart.php?arrIndex="+indexArr+"&num="+(Math.floor(Math.random()*20));
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged(){
	if(xmlHttp.readyState==4){//request is complete
		window.location='index.php?action=mycart';
	} 
}							
											
function GetXmlHttpObject(){
	var xmlHttp=null;
	try{ xmlHttp=new XMLHttpRequest(); } //Firefox, Opera 8.0+, Safari
	catch(e){//Internet Explorer versions
		try{ xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); }
		catch(e){ xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); }
	}
	return xmlHttp;
}

function isNumberKey(evt)
{
	evt = (evt) ? evt : window.event
	var charCode = (evt.which) ? evt.which : evt.keyCode
	if (charCode > 31 && (charCode < 48 || charCode > 57))
	{ return false; }
	else
	{ return true; }
}

function preventLink(evt){
	evt.preventDefault();
}