function ucallOpenSeatAlign(alignId, classId) {
  var mywin;
  var domainUri='/ucall/';
  var ucallHostIp='221.237.182.205:8011';
  var seatServiceType=classId;
  var customerId;
  var jijinAccount;
  var ucallReferrer=document.referrer;
  var chatServiceMsg=encodeURI('');

  if(mywin != undefined) {
    if(!mywin.closed) {
	  alert('您已经打开一个聊天窗口，请先关闭！');
	  return false;
	}
  }
  var ucallOpenUrl = 'http://'+ ucallHostIp +'/chatOpenSeatAlign.jsp?seatAlignId='+alignId+'&domainUri='+domainUri+'&seatServiceType='+seatServiceType+'&customerId='+customerId+'&jijinAccount='+jijinAccount+'&ucallReferrer='+ucallReferrer+'&chatServiceMsg='+chatServiceMsg;
  mywin=window.open(ucallOpenUrl,'window','width=600,height=435,left=218,top=130,resizable=0,scrollbars=0,status=no,toolbar=no,location=no,menu=no');
}