var updateshoppingcart_timer;
	var updatecombineshoppingcart_timer;
	var updateshoppingprevious_skuid;
	var updateshoopingprevious_amount;
	var timerskuid = null;
	var timerskuids = null;
	function updateshoppingcarttimer(skuid, activityid, activitytype) {
		if (timerskuid == null || timerskuid == skuid) {
			cleartimeout(updateshoppingcart_timer);
		}
		updateshoppingcart_timer = settimeout("updateshoppingcart("+skuid+", " + activityid + ", " + activitytype + ")", 1000);
		timerskuid = skuid;
	}
	
	function updatecombineshoppingcarttimer(skuids, activityid, activitytype) {
		if (timerskuids == null || timerskuids == skuids) {
			cleartimeout(updatecombineshoppingcart_timer);
		}
		updatecombineshoppingcart_timer = settimeout("updatecombineshoppingcart('"+skuids+"', " + activityid + ", " + activitytype + ")", 500);
		timerskuids = skuids;
	}