Miscellany

var response;function canPlay( from, moveTo ) {        xmlHttp = GetXmlHttpObject();        xmlHttp.open( 'POST', url, true );        xmlHttp.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );        xmlHttp.onreadystatechange = function() {                if (xmlHttp.readyState == 4) {                        response = xmlHttp.requestText;                        return response;                }        }        xmlHttp.send( 'canPlay='+ _GAME_CODE +'&playerId='+ _PLAYER_ID +'&from='+ from +'&moveTo='+ moveTo );}