YNU_JEUS/app_home/himed/webapps/ast/examcureweb/js/ComboCom.js

   var dutplcecd = getUserInfo("dutplcecd");
    var selectplcecd = getScreenPrestDeptCd();
	
	alert(dutplcecd + "/////" + selectplcecd);
	
	if ( selectplcecd == "" ) {
	      selectplcecd = dutplcecd;
	}
	
	model.setValue("/root/send/globalinstance/instance1",  selectplcecd);