function setaid(){
	var paramstring = location.search;
	if( paramstring != "" ){
		var params = paramstring.split("?");
		if( params.length > 1){
			params = params[1].split("&");
	 	}
		var i;
		for(i = 0; i < params.length; i++){
			p = params[i].split("=");
			if( p.length > 1 && (p[0] == "aid" || p[0] == "acode") ){
					document.cookie = params[i] + ";path=/reserve;expires=Fri May 04 2012 12:42:25;";
					return true;
			}
		}
	}
}

function addEventCommon(obj, evType, fn){
	if (obj.addEventListener){
		obj.addEventListener(evType, fn, false);
		return true;
	}
	else if (obj.attachEvent){
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	}
	else {
		return false;
	}
}

addEventCommon(window, "load", setaid);